Test TC-1A - Checking System For Trouble Codes

WARNING: This page is about a different car, the 1995 Dodge Pickup and 1995 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For circuit and connector terminal identification, see CONNECTOR IDENTIFICATION . For wiring diagrams, see WIRING DIAGRAMS section at the end of this article.

Battery must be fully charged before proceeding. Attempt to start engine. If engine will not start, crank engine for at least 10 seconds. Connect scan tool to engine Data Link Connector (DLC). Record scan tool trouble codes.
If scan tool displays ERROR message, go to TEST NS-6A. If scan tool has a blank screen or displays an error message, this indicates a scan tool failure. To diagnose and correct problem, see SELF-DIAGNOSTIC TESTS in TESTS W/CODES - BODY CONTROL COMPUTER article in the ENGINE PERFORMANCE section. If scan tool displays trouble codes, see SCAN TOOL TROUBLE CODES table and perform appropriate test(s). If scan tool does not display trouble codes, proceed to TEST NS-1A for no-start tests or to TEST NTC-1A for no trouble code tests.

SCAN TOOL TROUBLE CODES

DTC

Trouble Code

Test No.

Code 11

NO CRANK REFERENCE SIGNAL AT PCM

TC-2A

Code 54

NO CAM SIGNAL AT PCM

TC-3A

Code 13

NO CHANGE IN MAP FROM START TO RUN

TC-4A

Code 14

MAP SENSOR VOLTAGE TOO LOW

TC-5A

Code 14

MAP SENSOR VOLTAGE TOO HIGH

TC-6A

Code 15

NO VEHICLE SPEED SENSOR SIGNAL

TC-7A

Code 21

LEFT O2S STAYS AT CENTER

TC-8A

Code 21

RIGHT O2S STAYS AT CENTER

TC-9A

Code 52

LEFT O2S STAYS ABOVE CENTER (RICH)

TC-10A

Code 51

LEFT O2S STAYS BELOW CENTER (LEAN)

TC-11A

Code 21

LEFT O2S SHORTED TO VOLTAGE

TC-12A

Code 21

RIGHT O2S SHORTED TO VOLTAGE

TC-13A

Code 52

SYSTEM RICH L-IDLE ADAP AT LEAN LIMIT

TC-14A

Code 51

SYSTEM LEAN L-IDLE ADAP AT RICH LIMIT

TC-15A

Code 22

ECT SENSOR VOLTAGE TOO LOW

TC-16A

Code 22

ECT SENSOR VOLTAGE TOO HIGH

TC-17A

Code 23

INTAKE AIR TEMP SENSOR VOLTAGE LOW

TC-18A

Code 23

INTAKE AIR TEMP SENSOR VOLTAGE HIGH

TC-19A

Code 24

THROTTLE POSITION SENSOR VOLTAGE LOW

TC-20A

Code 24

THROTTLE POSITION SENSOR VOLTAGE HIGH

TC-21A

Code 25

IDLE AIR CONTROL MOTOR CIRCUITS

TC-22A

Code 43

IGNITION COIL #1 PRIMARY CIRCUIT

TC-23A

Code 43

IGNITION COIL #2 PRIMARY CIRCUIT

TC-24A

Code 43

IGNITION COIL #3 PRIMARY CIRCUIT

TC-25A

Code 43

IGNITION COIL #4 PRIMARY CIRCUIT

TC-26A

Code 43

IGNITION COIL #5 PRIMARY CIRCUIT

TC-27A

Code 27

INJECTOR CONTROL CIRCUIT

TC-28A

Code 27

INJECTOR #1 CONTROL CIRCUIT

TC-28B

Code 27

INJECTOR #2 CONTROL CIRCUIT

TC-29A

Code 27

INJECTOR #3 CONTROL CIRCUIT

TC-30A

Code 27

INJECTOR #4 CONTROL CIRCUIT

TC-31A

Code 27

INJECTOR #5 CONTROL CIRCUIT

TC-32A

Code 32

EGR SYSTEM FAILURE

TC-33A

Code 32

EGR SOLENOID CIRCUIT

TC-34A

Code 31

EVAP SOLENOID CIRCUIT

TC-35A

Code 37

TORQUE CONVERTER CLUTCH SOLENOID CIRCUIT

TC-36A

Code 45

TRANS OVERDRIVE SOLENOID CIRCUIT

TC-37A

Code 33

A/C CLUTCH RELAY CIRCUIT

TC-38A

Code 42

AUTO SHUTDOWN RELAY CONTROL CIRCUIT

TC-39A

Code 42

NO ASD RELAY VOLT SENSE AT PCM

TC-40A

Code 37

TRANS TEMP SENSOR VOLTAGE TOO LOW

TC-41A

Code 37

TRANS TEMP SENSOR VOLTAGE TOO HIGH

TC-42A

Code 62 or 63

PCM FAILURE SRI NOT STORED OR PCM FAILURE EEPROM WRITE DENIED

TC-43A

Code 17

ENGINE IS COLD TOO LONG

⁽¹⁾

Code 53

INTERNAL CONTROLLER FAILURE

⁽²⁾

Code 53

PCM FAILURE SPI COMMUNICATIONS

⁽²⁾

Code 41

GENERATOR FIELD NOT SWITCHING PROPERLY

⁽³⁾

Code 44

BATTERY TEMP SENSOR VOLTAGE OUT OF LIMIT

⁽³⁾

Code 47

CHARGING SYSTEM VOLTAGE TOO LOW

⁽³⁾

Code 46

CHARGING SYSTEM VOLTAGE TOO HIGH

⁽³⁾

Code 34

SPEED CONTROL SOLENOID CIRCUITS

⁽⁴⁾

⁽¹⁾	Check cooling system if engine temperature does not reach 176°F (80°C) after driving 20 minutes. This code may set in error during very cold slow speed driving.

⁽²⁾	Replace PCM and perform TEST VER-2.

⁽³⁾	See CHRYSLER CORP. - GENERATORS & REGULATORS article in the ELECTRICAL section.

⁽⁴⁾	Refer to CHRYSLER CORP. CRUISE CONTROL SYSTEMS article in ACCESSORIES/SAFETY EQUIPMENT section.