Checking System For Trouble Codes

NOTE: For connector terminal ID, see CONNECTOR IDENTIFICATION. For wiring diagram, see WIRING DIAGRAMS - 3.3L article in ENGINE PERFORMANCE.

NOTE: Battery must be fully charged before proceeding.

Attempt to start engine. If necessary, crank engine for up to 10 seconds. Connect scan tool to Data Link Connector (DLC). Record scan tool trouble codes. If scan tool screen displays NO RESPONSE, go to TEST NS-6A .
If scan tool has a blank screen or displays RAM TEST FAILURE, CARTRIDGE ERROR, KEY PAD TEST FAILURE, or LOW OR HIGH BATTERY, this indicates a scan tool failure. To diagnose and correct these conditions, see TESTS W/CODES - BODY CONTROL COMPUTER article in ENGINE PERFORMANCE.
If trouble codes are displayed, see SCAN TOOL TROUBLE CODES LIST table and perform appropriate test(s). If scan tool does not display any trouble codes, refer to one of the following: for driveability problems, go to TEST NTC-1A . For no-start problems, go to TEST NS-1A . For cruise control problems, see CRUISE CONTROL SYSTEM article. For charging problems, see ALTERNATOR & REGULATOR . For air conditioning problems, see the appropriate article:
- A/C-HEATER SYSTEM - AUTOMATIC
- A/C-HEATER SYSTEM - MANUAL

SCAN TOOL TROUBLE CODES LIST

DTC

Scan Tool Display

Perform Test No.

Code 11

NO CRANK REFERENCE SIGNAL AT PCM

TC-2A

Code 54

NO CAM SYNC SIGNAL AT PCM

TC-3A

Code 14

MAP SENSOR VOLTAGE TOO LOW

TC-4A

Code 14

MAP SENSOR VOLTAGE TOO HIGH

TC-5A

Code 13

NO CHANGE IN MAP FROM START TO RUN

TC-6A

Code 24

THROTTLE POSITION SENSOR VOLTAGE LOW

TC-7A

Code 24

THROTTLE POSITION SENSOR VOLTAGE HIGH

TC-8A

Code 21

LEFT O2S STAYS AT CENTER

TC-9A

Code 21

RIGHT O2S STAYS AT CENTER

TC-10A

Code 21

LEFT O2S SHORTED TO VOLTAGE

TC-11A

Code 21

RIGHT O2S SHORTED TO VOLTAGE

TC-12A

Code 52

LEFT O2S STAYS ABOVE CENTER (RICH)

TC-13A

Code 52

RIGHT O2S STAYS ABOVE CENTER (RICH)

TC-14A

Code 51

LEFT O2S STAYS BELOW CENTER (LEAN)

TC-15A

Code 51

RIGHT O2S STAYS BELOW CENTER (LEAN)

TC-16A

Code 23

INTAKE AIR TEMPERATURE SENSOR VOLTAGE LOW

TC-17A

Code 23

INTAKE AIR TEMPERATURE SENSOR VOLTAGE HIGH

TC-18A

Code 22

ECT SENSOR VOLTAGE TOO LOW

TC-19A

Code 22

ECT SENSOR VOLTAGE TOO HIGH

TC-20A

Code 33

A/C PRESSURE SENSOR HIGH

TC-21A

Code 33

A/C PRESSURE SENSOR LOW

TC-22A

Code 64

FLEX FUEL SENSOR VOLTS TOO HIGH

TC-23A

Code 64

FLEX FUEL SENSOR VOLTS TOO LOW

TC-23A

Code 64

LOSS OF FLEX FUEL CALIBRATION SIGNAL

TC-24A

Code 16

KNOCK SENSOR #1 CIRCUIT

TC-25A

Code 16

KNOCK SENSOR #2 CIRCUIT

TC-26A

Code 15

NO VEHICLE SPEED SENSOR SIGNAL

TC-27A

Code 25

IDLE AIR CONTROL MOTOR CIRCUITS

TC-28A

Code 27

INJECTOR CONTROL CIRCUIT

TC-29A

Code 43

IGNITION COIL PRIMARY CIRCUIT

TC-35A

Code 32

EGR SYSTEM FAILURE

TC-38A

Code 32

EGR SOLENOID CONTROL CIRCUIT

TC-39A

Code 31

EVAP SOLENOID CONTROL CIRCUIT

TC-40A

Code 65

MANIFOLD TUNE VALVE SOLENOID CIRCUIT

TC-41A

Code 35

LOW SPEED FAN CTRL RELAY CIRCUIT

TC-42A

Code 35

HIGH SPEED FAN CTRL RELAY CIRCUIT

TC-43A

Code 42

AUTO SHUTDOWN RELAY CONTROL CIRCUIT

TC-44A

Code 33

A/C CLUTCH RELAY CIRCUIT

TC-45A

Code 66

NO CCD BUS MESSAGES FROM TCM

TC-46A

Code 66

NO CCD MESSAGES FROM BCM

TC-47A

Code 17

ENGINE IS COLD TOO LONG

⁽¹⁾

Code 53

INTERNAL PCM FAILURE

⁽²⁾

Code 62

PCM FAILURE SRI MILES NOT STORED

⁽²⁾

Code 44

BATTERY TEMP SENSOR VOLTS OUT OF LIMIT

⁽³⁾

Code 41

GENERATOR FIELD NOT SWITCHING PROPERLY

⁽³⁾

Code 47

CHARGING SYSTEM VOLTAGE TOO LOW

⁽³⁾

Code 46

CHARGING SYSTEM VOLTAGE TOO HIGH

⁽³⁾

Code 34

SPEED CONTROL SOLENOID CIRCUITS

⁽⁴⁾

Code 34

SPEED CONTROL SWITCH ALWAYS HIGH

⁽⁴⁾

Code 34

SPEED CONTROL SWITCH ALWAYS LOW

⁽⁴⁾

Code 77

SPEED CONTROL POWER RELAY CIRCUIT

⁽⁴⁾

⁽¹⁾	- If engine temperature does not reach 176°F (80°C) after driving 20 minutes, check cooling system. Trouble code may also set in error during very cold slow speed driving.

⁽²⁾	- Replace Powertrain Control Module (PCM) and perform TEST VER-1.

⁽³⁾	- Refer to ALTERNATORS & REGULATORS - LH BODY article in STARTING & CHARGING SYSTEMS.

⁽⁴⁾	- Refer to CRUISE CONTROL SYSTEMS - LH BODY article in ACCESSORIES & EQUIPMENT.