I30 1996-1997

3.0L V6 VIN C Auto 2

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Trouble Code: P0306



Cylinder 6 Misfire Detected

Possible Causes:



Base engine mechanical problem that affects only Cylinder 6
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects only Cylinder 6 (e.g., a contaminated, dirty or sticking fuel injector)
 
Ignition system fault (Coil or Plug) that affects only Cylinder 6
 

Trouble Code: P0325



Knock Sensor (KS) Circuit

Possible Causes:



Check harness and connectors:
 
- circuit is open or shorted
 
Knock sensor
 

Trouble Code: P0335



Crankshaft Position Sensor Circuit Malfunction

Possible Causes:



CKP sensor signal circuit is open or shorted to ground
 
CKP sensor signal is shorted to VREF or system power
 
CKP sensor is damaged or has failed
 
ECM/PCM has failed
 

Trouble Code: P0340



Camshaft Position Sensor Circuit (Includes Hybrid Models)

Possible Causes:



Harness or connectors
 
- CMP sensor (PHASE) (bank 1) circuit is open or shorted.
 
Camshaft position sensor (PHASE) (bank 1)
 
Camshaft (INT)
 
Starter motor
 
Starting system circuit
 
Dead (Weak) battery
 

Trouble Code: P0400



EGR System Function - No Flow

Possible Causes:



EGR valve (stuck closed)
 
EGRC-BPT valve
 
Vacuum hose
 
EGRC solenoid valve
 
EGR passage
 
EGR temperature sensor
 
Exhaust gas leaks
 

Trouble Code: P0402



EGRC-BPT Valve Malfunction

Possible Causes:



EGRC-BPT valve
 
EGR valve
 
Loose, disconnected or blocked tube
 
CMP sensor
 
Blocked exhaust system
 
Blocked EGR orifice
 
MAF sensor
 
EGRC solenoid valve
 

Trouble Code: P0403



EGR Improper Voltage Signal

Possible Causes:



Harness or connectors
 



EGR volume control valve
 

Trouble Code: P0420



Catalyst System Efficiency Below Threshhold (Includes Hybrid Models)

Possible Causes:



Three way catalyst (manifold)
 
Exhaust tube
 
Intake air leaks
 
Fuel injector
 
Fuel injector leaks
 
Spark plug
 
Improper ignition timing
 

Trouble Code: P0430



Catalyst System Efficiency Below Threshhold (Bank 2)

Possible Causes:



Three way catalyst (manifold)
 
Exhaust tube
 
Intake air leaks
 
Fuel injector
 
Fuel injector leaks
 
Spark plug
 
Improper ignition timing
 

Trouble Code: P0440



EVAP System Small Leak Detected

Possible Causes:



Fuel tank vacuum relief valve
 
Filler cap
 
Leak between EVAP canister purge valve and intake manifold
 
EVAP canister vent control valve
 
EVAP canister or fuel tank leaks
 
EVAP purge line
 
Hoses or tubes loose, disconnected, kinked or blocked
 
EVAP canister purge control valve or solenoid valve
 
Absolute pressure sensor
 
Fuel tank temperature sensor
 
MAP/BARO switch solenoid valve
 
EVAP canister vent valve O-ring damaged or missing
 
Water separator
 
EVAP canister saturated with water
 
EVAP control system pressure sensor
 
Refueling EVAP vapor cut valve
 
ORVR system leaks
 
 

Trouble Code: P0443



EVAP Canister Purge Solenoid Circuit Malfunction

Possible Causes:



Purge solenoid control circuit open, shorted to ground or power
 
Purge solenoid is shorted to system power (B+)
 
Purge solenoid is damaged or has failed
 
PCM has failed
 
TSB 00-060 (7/00) contains information related to this code
 

Trouble Code: P0446



EVAP Canister Vent Control Solenoid Circuit Malfunction

Possible Causes:



Harness or connectors
 
- The valve circuit is open or shorted.
 
EVAP canister vent control valve
 

Trouble Code: P0450



EVAP Control System Pressure Sensor

Possible Causes:



Harness or connectors
 
- Sensor circuit is open or shorted
 
Hose to sensor is loose or damaged
 
EVAP control system pressure sensor
 
EVAP canister purge volume control valve
 
EVAP canister vent control valve
 
EVAP canister
 
Hose to water separator loose or damaged
 

Trouble Code: P0455



EVAP Control System Gross Leak Detected (Includes Hybrid Models)

Possible Causes:



Fuel filler cap remains open or fails to close.
 
Incorrect fuel tank vacuum relief valve
 
Incorrect fuel filler cap used
 
Foreign matter caught in fuel filler cap
 
Leak is in line between intake manifold and EVAP canister purge volume control solenoid valve
 
Foreign matter caught in EVAP canister vent control valve.
 
EVAP canister or fuel tank leaks
 
EVAP purge line (pipe and rubber tube) leaks
 
EVAP purge line rubber tube bent.
 
Loose or disconnected rubber tube
 
EVAP canister vent control valve and the circuit
 
Drain filter
 
EVAP canister purge volume control solenoid valve and the circuit
 
Fuel tank temperature sensor
 
O-ring of EVAP canister vent control valve is missing or damaged.
 
EVAP control system pressure sensor
 
Refueling EVAP vapor cut valve
 
ORVR system leaks
 

Trouble Code: P0456



EVAP System Very Small Leak (0.020") Detected

Possible Causes:



EVAP control system pressure sensor is damaged or has failed
 
EVAP purge solenoid is damaged or has failed
 
EVAP canister vent control valve is damaged or has failed
 
Fuel tank cap not tightened properly or the wrong part number
 
Fuel tank temperature sensor is damaged or has failed
 
Fuel tank vacuum relief valve is damaged or has failed
 
Very small leak in the EVAP canister or in the fuel tank area
 
ORVR system is damaged or has a small leak in a component
 
Refueling control valve is damaged or has failed
 
TSB 00-046 (7/00) contains information related to this code
 

Trouble Code: P0460



Fuel Level Sensor Circuit Noise (Includes Hybrid Models)

Possible Causes:



Harness or connectors
 
- CAN communication line is open or shorted
 
- Fuel level sensor circuit is open or shorted
 
Combination meter (unified meter and A/C amp.)
 
Fuel level sensor
 

Trouble Code: P0461



Fuel Level Sensor Circuit Range/Performance (Includes Hybrid Models)

Possible Causes:



Harness or connectors
 
- CAN communication line is open or shorted
 
- Fuel level sensor circuit is open or shorted
 
Combination meter (unified meter and A/C amp.)
 
Fuel level sensor
 

Trouble Code: P0500



Vehicle Speed Sensor Circuit

Possible Causes:



Harness or connector
 



ABS/TCS control unit is damaged or has failed
 
Combination meter is damaged or has failed
 
VSS signal circuit is open, shorted to ground or shorted to B+
 
VSS is damaged or has failed
 
PCM has failed
 

Trouble Code: P0505



Idle Air Control, Auxiliary Air Control Valve

Possible Causes:



IACV-AAC valve control circuit is open or shorted to ground
 
IACV-AAC valve control circuit is shorted to system power (B+)
 
IACV-AAC valve is damaged or has failed
 
ECM/PCM is damaged or has failed
 

Trouble Code: P0510



Throttle Position Switch Closed

Possible Causes:



Harness or connectors:
 
- check circuit for open or short
 
Throttle position switch
 
Throttle position sensor
 

Trouble Code: P0600



A/T Communication Line

Possible Causes:



Check harness and connectors:
 
- circuit is open or shorted
 
TCM
 

Trouble Code: P0605



PCM or ECM Internal Fault Detected

Possible Causes:



Clear the codes and retest for DTC P0605. If the same code resets, substitute a known good PCM and retest. If the code does not reset, the original PCM or ECM has failed.
 

Trouble Code: P0705



Park Neutral Position Switch (Inhibitor Switch) Circuit Malfunction

Possible Causes:



P/N switch connector is damaged or loose
 
P/N switch signal circuit is open or shorted to ground
 
P/N switch signal circuit is shorted to VREF or system power
 
P/N switch is damaged or has failed
 
TCM has failed
 

Trouble Code: P0710



Transmission Fluid Temperature Sensor Circuit Malfunction

Possible Causes:



Harness or connectors
 
- The sensor circuit is open or shorted.
 
A/T fluid temperature sensor
 

Trouble Code: P0720



Vehicle Speed Sensor A/T (Revolution Sensor/Output Speed Sensor)

Possible Causes:



Harness or connectors
 
- The sensor circuit is open or shorted.
 
Revolution sensor
 
Vehicle speed sensor MTR
 

Trouble Code: P0725



Engine Speed Signal

Possible Causes:



Check harness and connectors:
 
- circuit is open or shorted
 

Trouble Code: P0731



A/T 1st Gear Function

Possible Causes:



Shift solenoid valve A (off stick)
 
2nd brake
 
2nd coast brake
 
One-way clutch No.1
 
One-way clutch No.2
 
Hydraulic control circuit
 

Trouble Code: P0732



A/T 2nd Gear Function

Possible Causes:



Shift solenoid valve A (On stick)
 
Shift solenoid valve B (On stick)
 
Shift solenoid valve C (Off stick)
 
Shift solenoid valve D (On stick)
 
Pressure control solenoid valve A (On stick)
 
Pressure control solenoid valve C (On stick)
 
U/D brake
 
2nd coast brake
 
2nd brake
 
One-way clutch No.1
 
One-way clutch No.2
 
B5 brake
 
Hydraulic control circuit
 

Trouble Code: P0733



A/T 3rd Gear Function

Possible Causes:



Shift solenoid valve A (On stick)
 
Shift solenoid valve B (On stick)
 
Shift solenoid valve C (Off stick)
 
Shift solenoid valve D (Off stick)
 
Pressure control solenoid valve A (On stick)
 
B5 brake
 
U/D clutch
 
U/D brake
 
Hydraulic control circuit
 

Trouble Code: P0734



A/T 4th Gear Function

Possible Causes:



Shift solenoid valve A (On stick.)
 
Shift solenoid valve B (On stick.)
 
Shift solenoid valve C (On stick.)
 
Pressure control solenoid valve A (On stick.)
 
Forward and direct clutch assembly
 
U/D clutch
 
U/D brake
 
2nd coast brake
 
One-way clutch No.1
 
Hydraulic control circuit
 

Trouble Code: P0740



Torque Converter Clutch Solenoid Valve

Possible Causes:



Torque converter clutch solenoid valve
 
Harness or connectors
 
- Solenoid circuit is open or shorted.
 

Trouble Code: P0744



A/T TCC S/V Function (Lock-Up)

Possible Causes:



Harness or connectors
 
- The solenoid circuit is open or shorted.
 
Torque converter clutch solenoid valve
 
Hydraulic control circuit
 

Trouble Code: P0745



Pressure Control Solenoid A

Possible Causes:



Harness or connectors
 
- The solenoid circuit is open or shorted.
 
Line pressure solenoid valve
 

Trouble Code: P0750



Shift Solenoid Valve A Circuit

Possible Causes:



Check harness and connectors:
 
- circuit is open or shorted
 
Shift solenoid valve A
 

Trouble Code: P0755



Shift Solenoid Valve B Circuit

Possible Causes:



Check harness and connectors:
 
- circuit is open or shorted
 
Shift solenoid valve B
 

Trouble Code: P1035



Front HO2S Heater Voltage

Possible Causes:



Harness or connectors
 
- sensor heater circuit is open or shorted.
 
HO2 sensor heater
 

Trouble Code: P1105



MAP/BARO Switch Solenoid Valve

Possible Causes:



Harness or connectors
 
- MAP/BARO switch solenoid valve circuit open or shorted
 
Hoses disconnected or clogged
 
Absolute pressure sensor
 
MAP/BARO switch solenoid valve
 

Trouble Code: P1126



Thermostat Malfunction (Stuck Open)

Possible Causes:



Inspect for low coolant level
 
Inspect for incorrect coolant mixture
 
Check the operation of the thermostat (it may be stuck open)
 

Trouble Code: P1130



Swirl Control Solenoid Valve Performance

Possible Causes:



Swirl Control valve control circuit is open or shorted to ground
 
Swirl Control valve is damaged or has failed
 
Swirl Control valve vacuum hoses are loose, restricted or dirty
 
Intake air system leaks
 
One-way valve
 
Vacuum tank
 
MAF sensor
 
CKP sensor
 
TP sensor
 

Trouble Code: P1148



Closed Loop Control Function (Includes Hybrid Models)

Possible Causes:



Harness or connectors
 
- Air fuel ratio (A/F) sensor (sensor 1 on V6 and V8) circuit is open or shorted.
 
Air fuel ratio (A/F) sensor (sensor 1 on V6 and V8)
 
Air fuel ratio (A/F) sensor (sensor 1 on V6 and V8) heater
 

 
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