Honda_Passport_1997-2002

TroubleCodes (4 of 6)

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3.2L V6 - Std



Trouble Code: P0174

Fuel System Too Lean (Bank 2)

Trouble Code Conditions: DTC P0106, P0107, P0108, P0112, P0113, P0117, P0118, P0121, P0122, P0123, P0131, P0132, P0133, P0134, P0135, P0137, P0138, P0201-206, P0300, P0301=P0306, P0401, P0502, P0503, P0506, P0507, P1406 and P1441 not set, engine running in closed loop, system voltage from 11-16v, BARO sensor over 72.5 kPa, ECT sensor from 77-212ºF, IAT sensor from -40 to 248ºF, MAP sensor from 24-99 kPa, throttle angle steady at less than 95%, VSS under 85 mph, engine speed from 400-6000 rpm, MAF sensor from 2-20 g/sec, Purge duty cycle over 0%, and the PCM detected the average of the Long Term fuel trim values was more than +20%.

Possible Causes:



Air leaks after the MAF sensor, or in the EGR or PCV system
 
Base engine "mechanical" fault affecting one or more cylinders
 
Exhaust leaks before or near where the front HO2S is mounted
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MAP)
 
Fuel delivery system supplying too little fuel during cruise or idle periods (e.g., faulty fuel pump or dirty, restricted fuel filter)
 
Fuel injector (one or more) dirty or pressure regulator has failed
 
HO2S is contaminated, deteriorated or it has failed
 
Vehicle driven low on fuel or until it ran out of fuel
 

Trouble Code: P0175

Fuel System Too Rich (Bank 2)

Trouble Code Conditions: DTC P0106, P0107, P0108, P0112, P0113, P0117, P0118, P0121, P0122, P0123, P0131, P0132, P0133, P0134, P0135, P0137, P0138, P0201-206, P0300, P0301=P0306, P0401, P0502, P0503, P0506, P0507, P1406 and P1441 not set, engine running in closed loop, BARO sensor over 72.5 kPa, ECT sensor from 77-212ºF, IAT sensor from -40 to 248ºF, MAP sensor from 24-99 kPa, throttle angle less than 95%, VSS under 85 mph, engine speed from 400-6000 rpm, MAF sensor from 2-20 g/sec, Purge duty cycle over 0%, and the PCM detected the average of the Long Term fuel trim values was more than -14% during the Fuel System Monitor test.

Possible Causes:



Base engine "mechanical" fault affecting one or more cylinders
 
EVAP system component has failed or canister fuel saturated
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MAP)
 
Fuel delivery system supplying too much fuel during cruise or idle periods (e.g., faulty fuel pump, or faulty pressure regulator)
 
Fuel injector(s) is leaking or stuck partially open (one or more)
 
HO2S is contaminated, deteriorated or it has failed
 

Trouble Code: P0201

Fuel Injector Circuit 1 Malfunction

Trouble Code Conditions: Engine started, engine running, system voltage over 9v, and PCM detected the injector voltage for Cylinder 1 did not equal the system voltage with the injector commanded "off", or that the injector voltage did not equal zero (0) volts with the injector commanded "on".

Possible Causes:



Fuel injector control circuit is open or shorted to ground
 
Fuel injector power circuit is open between injector and relay
 
Fuel Injector has failed
 
PCM has failed (injector driver circuit may be open or shorted)
 

Trouble Code: P0202

Fuel Injector Circuit 2 Malfunction

Trouble Code Conditions: Engine started, engine running, system voltage over 9v, and PCM detected the injector voltage for Cylinder 2 did not equal the system voltage with the injector commanded "off", or that the injector voltage did not equal zero (0) volts with the injector commanded "on".

Possible Causes:



Fuel injector control circuit is open or shorted to ground
 
Fuel injector power circuit open between injector and ECM fuse
 
Fuel Injector has failed
 
PCM has failed (injector driver circuit may be open or shorted)
 

Trouble Code: P0203

Fuel Injector Circuit 3 Malfunction

Trouble Code Conditions: Engine started, engine running, system voltage over 9v, and PCM detected the injector voltage for Cylinder 3 did not equal the system voltage with the injector commanded "off", or that the injector voltage did not equal zero (0) volts with the injector commanded "on".

Possible Causes:



Fuel injector control circuit is open or shorted to ground
 
Fuel injector power circuit open between injector and ECM fuse
 
Fuel Injector has failed
 
PCM has failed (injector driver circuit may be open or shorted)
 

Trouble Code: P0204

Fuel Injector Circuit 4 Malfunction

Trouble Code Conditions: Engine started, engine running, system voltage over 9v, and PCM detected the injector voltage for Cylinder 4 did not equal the system voltage with the injector commanded "off", or that the injector voltage did not equal zero (0) volts with the injector commanded "on".

Possible Causes:



Fuel injector control circuit is open or shorted to ground
 
Fuel injector power circuit open between injector and ECM fuse
 
Fuel Injector has failed
 
PCM has failed (injector driver circuit may be open or shorted)
 

Trouble Code: P0205

Fuel Injector Circuit 5 Malfunction

Trouble Code Conditions: Engine started, engine running, system voltage over 9v, and PCM detected the injector voltage for Cylinder 5 did not equal the system voltage with the injector commanded "off", or that the injector voltage did not equal zero (0) volts with the injector commanded "on".

Possible Causes:



Fuel injector circuit is open, shorted to ground or to power
 
Fuel Injector power circuit is open or the injector has failed
 
PCM has failed (injector driver circuit may be open or shorted)
 

Trouble Code: P0206

Fuel Injector Circuit 6 Malfunction

Trouble Code Conditions: Engine started, engine running, system voltage over 9v, and PCM detected the injector voltage for Cylinder 6 did not equal the system voltage with the injector commanded "off", or that the injector voltage did not equal zero (0) volts with the injector commanded "on".

Possible Causes:



Fuel injector circuit is open, shorted to ground or to power
 
Fuel Injector power circuit is open or the injector has failed
 
PCM has failed (injector driver circuit may be open or shorted)
 

Trouble Code: P0300

Random Misfire Detected

Trouble Code Conditions: DTC P0101, P0102, P0103, P0106, P0107, P0108, P0117, P0118, P0121, P0122, P0123, P0336, P0341, P0342, P0502 and P0503 not set, ECT sensor from 20-248ºF, system voltage from 11-16v, engine speed from 800-5500 rpm, throttle angle stable (± 3%), and the PCM detected a crankshaft speed variation in one or more cylinders characteristic of a misfire condition during the Misfire Monitor test. Note: If the misfire is severe, the MIL will flash on/off on the 1st trip!

Possible Causes:



Base engine mechanical fault that affects one or more cylinders
 
Fuel metering fault that affects more than one cylinder
 
Fuel pressure too low or too high, fuel supply contaminated
 
EVAP system problem or the EVAP canister is fuel saturated
 
EGR valve is stuck open or the PCV system has a vacuum leak
 
IC control circuit is shorted to ground (an intermittent fault)
 
Ignition system fault (a coil) that affects more than one cylinder
 
MAF sensor contamination (it can cause a very lean condition)
 

Trouble Code: P0301

Cylinder 1 Misfire Detected

Trouble Code Conditions: DTC P0101, P0102, P0103, P0106, P0107, P0108, P0117, P0118, P0121, P0122, P0123, P0336, P0341, P0342, P0502 and P0503 not set, ECT sensor from 20-248ºF, system voltage from 11-16v, engine speed from 800-5500 rpm, throttle angle stable (± 3%), and the PCM detected a crankshaft speed variation in one cylinder characteristic of a misfire condition during the Misfire Diagnostic Monitor test. Note: If the misfire is severe, the MIL will flash on/off on the 1st trip!

Possible Causes:



Base engine mechanical fault that affects only one cylinder
 
Fuel metering fault that affects only one cylinder
 
IC control circuit is shorted to ground on only one cylinder
 
Ignition system fault (a coil) that affects only one cylinder
 

Trouble Code: P0302

Cylinder 2 Misfire Detected

Trouble Code Conditions: DTC P0101, P0102, P0103, P0106, P0107, P0108, P0117, P0118, P0121, P0122, P0123, P0336, P0341, P0342, P0502 and P0503 not set, ECT sensor from 20-248ºF, system voltage from 11-16v, engine speed from 800-5500 rpm, throttle angle stable (± 3%), and the PCM detected a crankshaft speed variation in one cylinder characteristic of a misfire condition during the Misfire Diagnostic Monitor test. Note: If the misfire is severe, the MIL will flash on/off on the 1st trip!

Possible Causes:



Base engine mechanical fault that affects only one cylinder
 
Fuel metering fault that affects only one cylinder
 
IC control circuit is shorted to ground on only one cylinder
 
Ignition system fault (a coil) that affects only one cylinder
 

Trouble Code: P0303

Cylinder 3 Misfire Detected

Trouble Code Conditions: DTC P0101, P0102, P0103, P0106, P0107, P0108, P0117, P0118, P0121, P0122, P0123, P0336, P0341, P0342, P0502 and P0503 not set, ECT sensor from 20-248ºF, system voltage from 11-16v, engine speed from 800-5500 rpm, throttle angle stable (± 3%), and the PCM detected a crankshaft speed variation in one cylinder characteristic of a misfire condition during the Misfire Diagnostic Monitor test. Note: If the misfire is severe, the MIL will flash on/off on the 1st trip!

Possible Causes:



Base engine mechanical fault that affects only one cylinder
 
Fuel metering fault that affects only one cylinder
 
IC control circuit is shorted to ground on only one cylinder
 
Ignition system fault (a coil) that affects only one cylinder
 

Trouble Code: P0304

Cylinder 4 Misfire Detected

Trouble Code Conditions: DTC P0101, P0102, P0103, P0106, P0107, P0108, P0117, P0118, P0121, P0122, P0123, P0336, P0341, P0342, P0502 and P0503 not set, ECT sensor from 20-248ºF, system voltage from 11-16v, engine speed from 800-5500 rpm, throttle angle stable (± 3%), and the PCM detected a crankshaft speed variation in one cylinder characteristic of a misfire condition during the Misfire Diagnostic Monitor test. Note: If the misfire is severe, the MIL will flash on/off on the 1st trip!

Possible Causes:



Base engine mechanical fault that affects only one cylinder
 
Fuel metering fault that affects only one cylinder
 
IC control circuit is shorted to ground on only one cylinder
 
Ignition system fault (a coil) that affects only one cylinder
 

Trouble Code: P0305

Cylinder 5 Misfire Detected

Trouble Code Conditions: DTC P0101, P0102, P0103, P0106, P0107, P0108, P0117, P0118, P0121, P0122, P0123, P0336, P0341, P0342, P0502 and P0503 not set, ECT sensor from 20-248ºF, system voltage from 11-16v, engine speed from 800-5500 rpm, throttle angle stable (± 3%), and the PCM detected a crankshaft speed variation in one cylinder characteristic of a misfire condition during the Misfire Diagnostic Monitor test. Note: If the misfire is severe, the MIL will flash on/off on the 1st trip!

Possible Causes:



Base engine mechanical fault that affects only one cylinder
 
Fuel metering fault that affects only one cylinder
 
IC control circuit is shorted to ground on only one cylinder
 
Ignition system fault (a coil) that affects only one cylinder
 

Trouble Code: P0306

Cylinder 6 Misfire Detected

Trouble Code Conditions: DTC P0101, P0102, P0103, P0106, P0107, P0108, P0117, P0118, P0121, P0122, P0123, P0336, P0341, P0342, P0502 and P0503 not set, ECT sensor from 20-248ºF, system voltage from 11-16v, engine speed from 800-5500 rpm, throttle angle stable (± 3%), and the PCM detected a crankshaft speed variation in one cylinder characteristic of a misfire condition during the Misfire Diagnostic Monitor test. Note: If the misfire is severe, the MIL will flash on/off on the 1st trip!

Possible Causes:



Base engine mechanical fault that affects only one cylinder
 
Fuel metering fault that affects only one cylinder
 
IC control circuit is shorted to ground on only one cylinder
 
Ignition system fault (a coil) that affects only one cylinder
 

Trouble Code: P0325

Knock Sensor Module Range/Performance

Trouble Code Conditions: DTC P0327 not set, engine started, system voltage from 11-16v, engine runtime over 120 seconds, and the PCM detected the Knock Sensor (KS) signal was present for over 5 seconds in the CCM test.

Possible Causes:



KS signal circuit is open or shorted to ground
 
KS signal circuit is shorted to VREF or system power (B+)
 
Knock Sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0327

Knock Sensor Circuit Low Input

Trouble Code Conditions: Engine started, engine runtime over 10 seconds, system voltage from 11-16v, ECT sensor more than 140ºF, engine speed from 2000-4000 rpm, throttle angle over 5%, and the PCM detected the Knock Sensor (KS) signal indicated less than 0.20v, or indicated ore than 4.8v for over 15 seconds during the CCM test.

Possible Causes:



KS signal circuit is open or shorted to ground
 
KS signal circuit is shorted to VREF or system power (B+)
 
Knock Sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0336

Crankshaft Position 58X Sensor Circuit Malfunction

Trouble Code Conditions: Engine started, and the PCM detected extra or missing pulses between consecutive Crankshaft Position (CKP) 58X sensor signals during 10 out of 100 revolutions during the CCM test.

Possible Causes:



CKP sensor 58X signal circuit is open or shorted to ground
 
CKP sensor ground circuit is open or has high resistance
 
CKP sensor power circuit is open between the sensor and PCM
 
CKP sensor is damaged, or the reluctor wheel is damaged
 
PCM has failed (the Ignition module function is inside the PCM)
 

Trouble Code: P0337

Crankshaft Position 58X Sensor Circuit Low Input

Trouble Code Conditions: DTC P0341 and P0342 not set, engine started, and the PCM did not detect any Crankshaft Position (CKP) 58X sensor pulses present between two (2) CMP sensor pulses, or it did not detect any CKP sensor pulses within 8 CMP sensor pulses during the CCM test.

Possible Causes:



CKP sensor 58X signal circuit is open or shorted to ground
 
CKP sensor ground circuit is open or has high resistance
 
CKP sensor power circuit is open between the sensor and PCM
 
CKP sensor is damaged, or the reluctor wheel is damaged
 
PCM has failed (the Ignition module function is inside the PCM)
 

Trouble Code: P0341

Camshaft Position Sensor Range/Performance

Trouble Code Conditions: Engine started, engine running, and the PCM the Camshaft Position (CMP) sensor signals were not detected at the correct time interval after detecting for 100 occurrences in a 200-test sample in the test.

Possible Causes:



CMP sensor circuit is open or shorted to ground (intermittent)
 
CMP sensor ground circuit is open (an intermittent fault)
 
CMP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0342

Camshaft Position Sensor Circuit Low Input

Trouble Code Conditions: Engine started, engine running, and PCM did not detect a Camshaft Position (CMP) sensor pulse at least once for every six (6) rotations of the crankshaft in a 10 second period during the CCM test.

Possible Causes:



CMP sensor signal circuit is open
 
CMP sensor signal circuit is shorted to ground
 
CMP sensor power circuit open between the sensor and PCM
 
CMP sensor ground circuit is open
 
CMP sensor is damaged or has failed
 

Trouble Code: P0351

Ignition Control Module Circuit 1 Malfunction

Trouble Code Conditions: Engine running with CKP 58X signals received, and the PCM detected the IC output signal did not equal 5v with the output commanded "on", or it did not equal 0v with the output commanded "off" in 20 tests over a 40 sample period during the CCM test.

Possible Causes:



EST signal circuit is open between module and coil or the PCM
 
EST signal circuit shorted between module and coil or the PCM
 
ION module is damaged or has failed
 
PCM has failed
 

Trouble Code: P0352

Ignition Control Module Circuit 2 Malfunction

Trouble Code Conditions: Engine running with CKP 58X signals received, and the PCM detected the IC output signal did not equal 5v with the output commanded "on", or it did not equal 0v with the output commanded "off" in 20 tests over a 40 sample period during the CCM test.

Possible Causes:



EST signal circuit is open between module and coil or the PCM
 
EST signal circuit shorted between module and coil or the PCM
 
ION module is damaged or has failed
 
PCM has failed
 

Trouble Code: P0353

Ignition Control Module Circuit 3 Malfunction

Trouble Code Conditions: Engine running with CKP 58X signals received, and the PCM detected the IC output signal did not equal 5v with the output commanded "on", or it did not equal 0v with the output commanded "off" in 20 tests over a 40 sample period during the CCM test.

Possible Causes:



EST signal circuit is open between module and coil or the PCM
 
EST signal circuit shorted between module and coil or the PCM
 
ION module is damaged or has failed
 
PCM has failed
 

Trouble Code: P0354

Ignition Control Module Circuit 4 Malfunction

Trouble Code Conditions: Engine running with CKP 58X signals received, and the PCM detected the IC output signal did not equal 5v with the output commanded "on", or it did not equal 0v with the output commanded "off" in 20 tests over a 40 sample period during the CCM test.

Possible Causes:



EST signal circuit is open between module and coil or the PCM
 
EST signal circuit shorted between module and coil or the PCM
 
ION module is damaged or has failed
 
PCM has failed
 

Trouble Code: P0355

Ignition Control Module Circuit 5 Malfunction

Trouble Code Conditions: Engine running with CKP 58X signals received, and the PCM detected the IC output signal did not equal 5v with the output commanded "on", or it did not equal 0v with the output commanded "off" in 20 tests over a 40 sample period during the CCM test.

Possible Causes:



EST signal circuit is open between module and coil or the PCM
 
EST signal circuit shorted between module and coil or the PCM
 
ION module is damaged or has failed
 
PCM has failed
 

Trouble Code: P0356

Ignition Control Module Circuit 6 Malfunction

Trouble Code Conditions: Engine running with CKP 58X signals received, and the PCM detected the IC output signal did not equal 5v with the output commanded "on", or it did not equal 0v with the output commanded "off" in 20 tests over a 40 sample period during the CCM test.

Possible Causes:



EST signal circuit is open between module and coil or the PCM
 
EST signal circuit shorted between module and coil or the PCM
 
ION module is damaged or has failed
 
PCM has failed
 

Trouble Code: P0401

Insufficient EGR System Flow Detected

Trouble Code Conditions: No ECT, EGR Pintle Position, EVAP, IAC, IAT, MAP, Misfire, TP or VSS codes set, system voltage from 11-16v, ECT sensor more than 140ºF, BARO sensor over 75 kPa, IAC position stable (±10 counts), A/C Clutch and TCC status unchanged, and VSS over 15 mph, then with the throttle closed (TP angle under 1%), EGR duty cycle under 1%, MAP sensor from 10-40 kPa (±2 kPa), engine speed from 1100-2000 rpm, the PCM detected the compensated MAP sensor signal indicated a value from 10.3-49.8 kPa during the EGR System test.

Possible Causes:



EGR valve "low" circuit is open, shorted to ground or to power
 
EGR valve VREF (5-volt) is open between sensor and the PCM
 
EGR valve feedback circuit is open or shorted to ground
 
EGR valve is stuck closed, or partially open during the test
 
EGR exhaust flow path may be restricted
 
EGR valve is damaged, or has failed
 
PCM has failed
 

Trouble Code: P0402

Excessive EGR System Excessive Flow Detected

Trouble Code Conditions: Engine started, IAT sensor more than 38ºF, engine running, system voltage at 11-16v, and the PCM detected the EGR position sensor signal indicated more than 21% over a 625 ms period during the EGR System flow test right after engine startup.

Possible Causes:



Linear EGR valve control circuit is shorted to ground
 
EGR valve is stuck partially open during the initial startup test
 
EGR valve is damaged, or has excessive carbon buildup
 
PCM has failed
 

Trouble Code: P0404

EGR Pintle Position Sensor Circuit Range/Performance

Trouble Code Conditions: Engine started, IAT sensor more than 38ºF, engine speed less than 600 rpm, system voltage at 11-16v, then with the Desired EGR position at over 0%, the PCM detected the difference between the Actual and Desired EGR position was more than 15% for over 15 seconds. This fault must occur 3 times in a single trip to set a code.

Possible Causes:



Linear EGR valve control circuit is shorted to ground
 
EGR valve is stuck partially open during the initial startup test
 
EGR valve is damaged, or has excessive carbon buildup
 
PCM has failed
 

Trouble Code: P0405

EGR Pintle Position Sensor Circuit Low Input

Trouble Code Conditions: Key on or engine running, system voltage from 11-16v, IAT sensor more than 140ºF, and the PCM detected the EGR position sensor indicated less than 0.10v for 10 seconds during the CCM test.

Possible Causes:



Linear EGR valve control circuit is shorted to ground
 
EGR valve is stuck partially open during the initial startup test
 
EGR valve is damaged, or has excessive carbon buildup
 
PCM has failed
 

Trouble Code: P0406

EGR Pintle Position Sensor Circuit High Input

Trouble Code Conditions: Engine started, engine running, system voltage from 11-16v, IAT sensor more than 41ºF, and the PCM detected the EGR position sensor indicated more than 4.80v for 10 seconds during the CCM test.

Possible Causes:



EGR feedback signal circuit is open between sensor and PCM
 
EGR sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0420

Catalyst Efficiency Below Normal (Bank 1)

Trouble Code Conditions: DTC P0106, P0107, P0108, P0112, P0113, P0117, P0118, P0121, P0122, P0123, P0131, P0132, P0133, P0134, P0137, P0138, P0140, P0141, P0171, P0172, P0300, P0301-P0306, P0336, P0341, P0342, P0401, P0502, P0506 and P0507 not set, engine speed less than 3500 rpm in closed loop, ECT sensor more than 140ºF, MAF sensor from 8-50 g/sec, engine load less than 99% (±8%), predicted Catalyst temperature over 750ºF, vehicle speed from 16-75 mph, and the PCM detected the catalyst oxygen storage capacity was below an acceptable threshold during the Catalyst test.

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Front HO2S or rear HO2S is contaminated with fuel or moisture
 
Front HO2S older (aged) than the rear HO2S (HO2S is lazy)
 
Front HO2S and/or the rear HO2S is loose in the mounting hole
 
Catalytic converter is damaged or has failed
 

Trouble Code: P0430

Catalyst Efficiency Below Normal (Bank 2)

Trouble Code Conditions: DTC P0106, P0107, P0108, P0112, P0113, P0117, P0118, P0121, P0122, P0123, P0131, P0132, P0133, P0134, P0137, P0138, P0140, P0141, P0171, P0172, P0300, P0301-P0306, P0336, P0341, P0342, P0401, P0502, P0506 and P0507 not set, engine speed less than 3500 rpm in closed loop, ECT sensor more than 140ºF, MAF sensor from 8-50 g/sec, engine load less than 99% (±8%), predicted Catalyst temperature over 750ºF, vehicle speed from 16-75 mph, and the PCM detected the catalyst oxygen storage capacity was below an acceptable threshold during the Catalyst test.

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Front HO2S or rear HO2S is contaminated with fuel or moisture
 
Front HO2S older (aged) than the rear HO2S (HO2S is lazy)
 
Front HO2S and/or the rear HO2S is loose in the mounting hole
 
Catalytic converter is damaged or has failed
 

Trouble Code: P0440

EVAP System Performance

Trouble Code Conditions: DTC P0106, P0107, P0108, P0112, P0113, P0117, P0118, P0121, P0122, P0123, P1640 ad P1650 not set, ECT and IAT sensors less than 90ºF and within 13ºF at startup, ECT sensor over 39ºF at startup, IAT sensor over 4ºF at startup, system voltage from 11-16v, BARO sensor over 75 kPa, throttle angle from 7-30%, fuel level from 15-85% with minimum fuel slosh, vehicle speed under 75 mph, and the PCM determined it was unable to achieve or maintain vacuum in the system for 60-180 seconds during the EVAP Monitor leak test.

Possible Causes:



Charcoal canister is loaded with fuel or moisture
 
ECT, IAT, MAP, VSS or TP sensor signals out-of-calibration
 
Fuel filler cap loose, cross-threaded, incorrect part or damaged
 
Fuel tank pressure sensor is damaged or has failed
 
Fuel tank or fuel tank sender assembly 'O' ring is leaking
 
Fuel tank vapor line(s) block, damaged or disconnected
 
Purge or Vent solenoid control circuit open or shorted to ground
 
Purge or Vent solenoid power circuit is open (check the fuse)
 

Trouble Code: P0442

EVAP System Small Leak (0.040") Detected

Trouble Code Conditions: DTC P0106, P0107, P0108, P0112, P0113, P0117, P0118, P0121, P0122, P0123, P0440, P0446, P0562, P0563, P1640 and P1650 not set, ECT and IAT sensors less than 90ºF and within 13ºF at startup, ECT sensor over 39ºF at startup, IAT sensor over 4ºF at startup, system voltage from 11-16v, BARO sensor over 75 kPa, throttle angle from 7-30%, fuel level from 15-85% with minimum fuel slosh, vehicle speed under 75 mph, and the PCM detected a vacuum decaying condition characteristic of a small leak (0.040") in the system during the EVAP Monitor leak test.

Possible Causes:



Charcoal canister is loaded with fuel or moisture
 
ECT, IAT, MAP, VSS or TP sensor signals out-of-calibration
 
Fuel filler cap loose, cross-threaded, incorrect part or damaged
 
Fuel tank pressure sensor is damaged or has failed
 
Fuel tank or fuel tank sender assembly 'O' ring is leaking
 
Fuel tank vapor line(s) block, damaged or disconnected
 
Purge or Vent solenoid control circuit open or shorted to ground
 
Purge or Vent solenoid power circuit is open (check the fuse)
 

Trouble Code: P0444

EVAP Purge Solenoid Circuit Malfunction (Open)

Trouble Code Conditions: Engine started, engine running, system voltage from 11-16v, and the PCM detected an unexpected "high" voltage condition on the EVAP Purge solenoid control circuit with the solenoid commanded "on".

Possible Causes:



Purge solenoid control circuit is open between device and PCM
 
Purge solenoid control circuit is shorted to system power (B+)
 
Purge solenoid is damaged or has failed
 
PCM has failed (the solenoid driver circuit is damaged)
 

Trouble Code: P0445

EVAP Purge Solenoid Circuit Malfunction (Shorted)

Trouble Code Conditions: Engine started, engine running, system voltage from 11-16v, and the PCM detected an unexpected "low" voltage condition on the EVAP Purge solenoid control circuit with the solenoid commanded "off".

Possible Causes:



Purge solenoid control circuit is shorted to chassis ground
 
Purge solenoid power circuit is open (check the ENGINE fuse)
 
Purge solenoid is damaged or has failed
 
PCM has failed (the solenoid driver circuit is damaged)
 

Trouble Code: P0446

EVAP Vent Control System Performance

Trouble Code Conditions: DTC P0106, P0107, P0108, P0112, P0113, P0121, P0122, P0123, P1640 and P1650 not set, ECT and IAT sensors from 39-86ºF at startup, ECT signal within 12ºF of the IAT signal at startup, and the IAT signal within 2ºF of the ECT signal at startup, system voltage from 11-16v, BARO sensor more than 72 kPa, fuel tank level from 12-87%, Purge duty cycle over 50%, and the PCM detected the FTP sensor did no indicate close to -10" H2O under normal purge conditions with the Canister Vent solenoid "open", or it detected the FTP sensor did not indicate about -1.5 to +1.5" H2O at key "on".

Possible Causes:



Charcoal canister is clogged, plugged or restricted
 
EVAP vent control solenoid control circuit is shorted to ground
 
EVAP vent control solenoid hose is bent, kinked or plugged
 
EVAP vent control solenoid is damaged or has failed
 
PCM has failed (the solenoid driver circuit may be shorted)
 

Trouble Code: P0447

EVAP Vent Solenoid Circuit Malfunction (Open)

Trouble Code Conditions: Engine started, engine running, system voltage from 11-16v, and the PCM detected an unexpected "high" voltage condition on the EVAP Vent solenoid control circuit with the solenoid commanded "on".

Possible Causes:



Vent solenoid control circuit is open between device and PCM
 
Vent solenoid control circuit is shorted to system power (B+)
 
Vent solenoid is damaged or has failed
 
PCM has failed (the solenoid driver circuit is damaged)
 

 
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