ION, L-Series, S-Series 1999-2005

1.9L I4 VIN 7 Std 3

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Trouble Code: P0572



Cruise/Brake Switch Circuit Low Input

Possible Causes:



Brake switch signal circuit is open or shorted to ground
 
Brake switch power circuit is open (check the switch fuse)
 
Brake switch is damaged or out-of-adjustment
 
PCM has failed
 

Trouble Code: P0573



Cruise/Brake Switch Circuit High Input

Possible Causes:



Brake switch signal circuit is shorted to system power
 
Brake switch is damaged or out-of-adjustment
 
PCM has failed
 

Trouble Code: P0600



Loss Of Serial Communication Link

Possible Causes:



Reprogram the PCM
 
Recheck for any related trouble codes and repair these codes!
 

Trouble Code: P0601



PCM Memory Error

Possible Causes:



Perform the Diagnostic System Check for the PCM
 
Record any related trouble codes in memory
 
PCM may have failed (replace it and reprogram the new PCM)
 
Perform the Security System (Passlock) Relearn Procedure
 

Trouble Code: P0602



PCM Or TCM Not Programmed

Possible Causes:



Perform the Diagnostic System Check for the PCM or TCM
 
Record any related trouble codes in memory
 
Reprogram the PCM or TCM and recheck for related trouble codes. If the same code resets, replace and reprogram the PCM or the TCM (depending upon which one set the code).
 
Perform the Security System (Passlock) Relearn Procedure
 

Trouble Code: P0603



PCM Memory Reset Error

Possible Causes:



Record any related trouble codes in memory
 
PCM has failed (replace it and reprogram the new PCM)
 
Perform the Security System (Passlock) Relearn Procedure
 
TSB 00-06-04-043 contains a repair procedure for this code
 

Trouble Code: P0604



PCM Or TCM Random Access Memory Error

Possible Causes:



Record any related trouble codes in memory
 
PCM has failed (replace it and reprogram the new PCM/TCM)
 
Perform the Security System (Passlock) Relearn Procedure
 

Trouble Code: P0605



PCM Random Access Memory Error

Possible Causes:



Record any related trouble codes in memory
 
Clear codes, then restart the vehicle and recheck for this code.
 
If it resets, the PCM may have failed.
 
PCM has failed (replace it and reprogram the new PCM)
 

Trouble Code: P0606



PCM Internal Performance Malfunction

Possible Causes:



Record any related trouble codes in memory
 
Reprogram the PCM and recheck for any related trouble codes
 
If it resets, the PCM may have to be replaced
 
PCM has failed (replace it and reprogram the new PCM)
 
Perform the Security System (Passlock) Relearn Procedure
 

Trouble Code: P0636



Steering Assist Solenoid Control Circuit Low Input

Possible Causes:



EVO solenoid circuit is shorted to ground
 
EVO solenoid is damaged or it has failed (solenoid is shorted)
 
PCM has failed
 

Trouble Code: P0637



Steering Assist Solenoid Control Circuit High Input

Possible Causes:



EVO solenoid control circuit is open
 
EVO solenoid control circuit is shorted to system power
 
EVO solenoid is damaged or it has failed (solenoid is open)
 
PCM has failed
 

Trouble Code: P0656



Fuel Gauge Circuit Malfunction

Possible Causes:



Fuel gauge signal circuit is open or shorted to ground
 
Fuel gauge is damaged or it has failed
 
Instrument cluster power circuit is open or the cluster has failed
 
PCM has failed
 

Trouble Code: P1133



HO2S-11 (Bank 1 Sensor 1) Slow Response

Possible Causes:



Exhaust leak present in the exhaust manifold or exhaust pipes
 
Fuel system is too rich (fuel pressure too high, fuel pressure regulator leaking, or one or more fuel injectors sticking/leaking)
 
HO2S element is silicon, water or fuel contaminated or it failed
 

Trouble Code: P1134



HO2S-11 (Bank 1 Sensor 1) Transition Time Ratio

Possible Causes:



HO2S heater is damaged or it has failed
 
HO2S signal or ground circuit has a high resistance condition
 
HO2S signal circuit is open or shorted to system power (B+)
 
HO2S has failed (i.e., it is silicon, water or fuel contaminated)
 

Trouble Code: P1336



Excessive Crankshaft Variation Symptom

Possible Causes:



Perform the Crankshaft Variation Relearn Procedure
 
Excessive air gap, poor reluctor machining quality or "run-out"
 
EMI or RFI "noise" on CKP sensor circuit - repeat the "relearn"
 
The CKP "relearn" procedure will not run if there are any DTC P0300 Series codes in memory - repair these codes first!
 
Engine too cold to run the procedure - allow engine to warm up
 

Trouble Code: P1351



Ignition Coil Control 1-4 Circuit High Input

Possible Causes:



Ignition Coil 1-4 ignition control circuit is open
 
Ignition Coil 1-4 ignition control circuit is shorted to voltage
 
Ignition control module (ICM) is damaged or it has failed
 
PCM has failed
 

Trouble Code: P1352



Ignition Coil 2-3 Control Circuit High Input

Possible Causes:



Ignition Coilpack 2-3 ignition control circuit is open
 
Ignition Coilpack 2-3 ignition control circuit is shorted to voltage
 
Ignition control module (ICM) is damaged or it has failed
 
PCM has failed
 

Trouble Code: P1380



ABS Request Service Lamp

Possible Causes:



Read the Antilock Brake system trouble codes and make the necessary repairs - then recheck for this trouble code.
 

Trouble Code: P1403



EGR Solenoid Control Circuit Low Input

Possible Causes:



EGR solenoid control circuit is shorted to ground
 
EGR solenoid is damaged or it has failed (it may be shorted)
 
PCM has failed
 

Trouble Code: P1404



EGR Valve Signal Performance

Possible Causes:



EGR valve has carbon buildup on the pintle and it is stuck open
 
EGR valve sticking open due to a faulty gasket or it has failed
 
EGR sensor signal circuit is shorted to VREF or system voltage
 

Trouble Code: P1418



AIR Pump Solenoid Control Circuit High Input

Possible Causes:



AIR relay connector is damaged or shorted to system power
 
AIR relay control circuit is shorted to system power (B+)
 
AIR relay has failed (relay resistance is 75-105 ohms at 68ºF)
 
PCM has failed
 

Trouble Code: P1441



EVAP System Flow During Non-Purge

Possible Causes:



FTP sensor is out-of-calibration (skewed) or it has failed
 
Purge solenoid valve is damaged or leaking
 
Purge solenoid valve has failed (may be stuck in open position
 

Trouble Code: P1555



Electronic Variable Orifice Solenoid Malfunction

Possible Causes:



EVO solenoid circuit has a problem
 
EVO solenoid is damaged or it has failed
 
PCM has failed
 

Trouble Code: P1580



Cruise Control Module Move Circuit Low Input

Possible Causes:



Cruise control "move" circuit is shorted to ground
 
Cruise control switch is damaged or it has failed
 
PCM has failed
 

Trouble Code: P1581



Cruise Control Module Move Circuit High Input

Possible Causes:



Cruise control "move" circuit is open or shorted to power
 
Cruise control switch is damaged or it has failed
 
PCM has failed
 

Trouble Code: P1582



Cruise Control Module Direction Output Circuit Low Input

Possible Causes:



Cruise control direction circuit is open or shorted to ground
 
Cruise control switch is damaged or it has failed
 
PCM has failed
 

Trouble Code: P1583



Cruise Control Module Direction Output Circuit High Input

Possible Causes:



Cruise control direction circuit is shorted to system power
 
Cruise control switch is damaged or it has failed
 
PCM has failed
 

Trouble Code: P1584



Cruise Control Disabled

Possible Causes:



Cruise control switch is damaged (Decel Switch)
 
Traction Control system was active during the test sequence
 
Vehicle placed in the wrong gear position at high speed
 
Vehicle speed sensor or VSS input is erratic or invalid
 

Trouble Code: P1587



Cruise Control Clutch Output Circuit Low Input

Possible Causes:



Cruise control clutch circuit is open or shorted to ground
 
Cruise control clutch is damaged or it has failed
 
PCM has failed
 

Trouble Code: P1588



Cruise Control Clutch Output Circuit High Input

Possible Causes:



Cruise control clutch circuit is shorted to system power
 
Cruise control clutch is damaged (it may be shorted)
 
PCM has failed
 

Trouble Code: P1599



Engine Stall Or Near Stall Detected

Possible Causes:



CKP sensor connector is damaged, loose or open
 
Discuss the conditions present when this trouble code set with the customer (i.e., the engine may have stalled when the clutch was released too quickly during an initial take off period).
 

Trouble Code: P1620



Low Engine Coolant Switch Circuit Low Input

Possible Causes:



Low coolant switch signal circuit is open or shorted to ground
 
Low coolant switch power circuit is open (test the B/U LP fuse)
 
Low coolant switch is damaged or it has failed
 
PCM has failed
 

Trouble Code: P1621



PCM Memory Error

Possible Causes:



Record any related trouble codes in memory
 
Reprogram the PCM and recheck for the same trouble code
 
If the same trouble code resets, replace & reprogram the PCM
 
Perform the Security System (Passlock) Relearn Procedure
 

Trouble Code: P1623



TFT Sensor Pullup Resistor Circuit Malfunction

Possible Causes:



Record any related trouble codes in memory
 
Replace and reprogram the PCM
 
Perform the Security System (Passlock) Relearn Procedure
 

Trouble Code: P1625



TCM Checksum Memory Error

Possible Causes:



Record any related trouble codes in memory
 
Replace and reprogram the TCM
 

Trouble Code: P1626



Class 2 Communication With The BCM Lost

Possible Causes:



Perform the Onboard Diagnostic System Check with Scan Tool
 
If U1064, U1300 and U1301 are set, diagnose these codes first
 
Replace and reprogram the BCM
 
Perform the Security System (Passlock) Relearn Procedure
 

Trouble Code: P1627



PCM-EC Analog To Digital Converter Error

Possible Causes:



Record any related trouble codes in memory
 
Replace and reprogram the PCM
 
Perform the Security System (Passlock) Relearn Procedure
 

Trouble Code: P1628



PCM Engine Coolant Temperature Pullup Resistor Error

Possible Causes:



Record any related trouble codes in memory
 
Replace and reprogram the PCM
 
Perform the Security System (Passlock) Relearn Procedure
 

Trouble Code: P1635



PCM 5-Volt Reference Circuit Malfunction

Possible Causes:



If DTC P0562, P0563 and P0711 are set, check for a short to ground on the 5v Reference circuit.
 
If DTC P0561, P0562 and P0711 are set, check for a short to system power on the 5v Reference circuit.
 
Try disconnecting the sensors one at a time to find the fault TSB 00-08-45-004A contains a repair procedure for this code
 

Trouble Code: P1639



PCM Analog To Digital Converter Error

Possible Causes:



Record any related trouble codes in memory
 
Replace the PCM and program the new PCM
 
Perform the Security System (Passlock) Relearn Procedure
 

 
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