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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> External Pages >> Different car >> Section 29 (Engine Controls - Tests W/Codes - 3.3L Gasoline) >> Self-Diagnostic Tests >> Test TC-1A - Checking For DTCS

Test TC-1A - Checking For DTCS

WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, and 1995 Dodge Caravan. 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.
  1. 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 Data Link Connector (DLC). Record scan tool Diagnostic Trouble Codes (DTCs).
  2. If scan tool has a blank screen or displays RAM TEST FAILURE, CARTRIDGE ERROR, KEY PAD TEST FAILURE, LOW BATTERY or HIGH BATTERY, scan tool failure is indicated. To diagnose and correct, see VEHICLE COMMUNICATIONS CHRYSLER CORP. BODY CONTROL COMPUTER article in ENGINE PERFORMANCE section.
  3. If scan tool displays NO RESPONSE, go to TEST NS-6A. If DTCs are displayed, see SCAN TOOL DTCS table and perform appropriate test(s). If no DTCs are displayed and a driveability problem is present, go to TEST NTC-1A. If no DTCs are displayed and a no-start problem is present, go to TEST NS-1A.
SCAN TOOL DTCS

DTC Scan Tool Message Test No.
Code 11  NO CRANK REFERENCE SIGNAL AT PCM TC-2A
Code 54  NO CAM SYNC 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  O2S SHORTED TO VOLTAGE TC-8A
Code 21  O2S STAYS AT CENTER TC-9A
Code 52  O2S STAYS ABOVE CENTER (RICH) TC-10A
Code 51  O2S STAYS BELOW CENTER (LEAN) TC-11A
Code 22  ECT SENSOR VOLTAGE TOO HIGH TC-12A
Code 22  ECT SENSOR VOLTAGE TOO LOW TC-13A
Code 24  THROTTLE POSITION SENSOR VOLTAGE HIGH TC-14A
Code 24  THROTTLE POSITION SENSOR VOLTAGE LOW TC-15A
Code 25  IDLE AIR CONTROL MOTOR CIRCUITS TC-16A
Code 27  INJECTOR CONTROL CIRCUITS TC-17A
Code 27  INJECTOR #1 CONTROL CIRCUIT TC-17B
Code 27  INJECTOR #2 CONTROL CIRCUIT TC-18A
Code 27  INJECTOR #3 CONTROL CIRCUIT TC-19A
Code 27  INJECTOR #4 CONTROL CIRCUIT TC-20A
Code 27  INJECTOR #5 CONTROL CIRCUIT TC-21A
Code 27  INJECTOR #6 CONTROL CIRCUIT TC-22A
Code 31  EVAP SOLENOID CIRCUIT TC-23A
Code 32  EGR SOLENOID CIRCUIT TC-24A
Code 32  EGR SYSTEM FAILURE TC-25A
Code 33  A/C CLUTCH RELAY CIRCUIT TC-26A
Code 35  LOW SPEED FAN CONTROL RELAY CIRCUIT TC-28A
Code 35  HIGH SPEED FAN CONTROL RELAY CIRCUIT TC-29A
Code 42  AUTO SHUTDOWN RELAY CONTROL CIRCUIT TC-30A
Code 42  NO ASD RELAY VOLT SENSE AT PCM TC-31A
Code 43  IGNITION COIL PRIMARY CIRCUITS TC-32A
Code 43  IGNITION COIL #1 PRIMARY CIRCUIT TC-32B
Code 43  IGNITION COIL #2 PRIMARY CIRCUIT TC-33A
Code 43  IGNITION COIL #3 PRIMARY CIRCUIT TC-34A
Code 62  PCM FAILURE SRI MILE NOT STORED TC-35A
Code 63  PCM FAILURE EEPROM WRITE DENIED TC-35A
Code 53 PCM FAILURE SPI COMMUNICATIONS (1)
Code 44 BATTERY TEMP SENSOR VOLTS OUT OF LIMIT (2)
Code 47 CHARGING SYSTEM VOLTAGE TOO LOW (2)
Code 46 CHARGING SYSTEM VOLTAGE TOO HIGH (2)
Code 41 GENERATOR FIELD NOT SWITCHING PROPERLY (2)
Code 17 ENGINE IS COLD TOO LONG (3)
Code 53 INTERNAL PCM FAILURE (1)
Code 34 SPEED CONTROL SOLENOID CIRCUITS (4)
(1) Replace PCM and perform TEST VER-2.
(2) See CHRYSLER CORP. - GENERATORS & REGULATORS article in the ELECTRICAL section.
(3) 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.
(4) See CHRYSLER CORP. CRUISE CONTROL SYSTEMS article in ACCESSORIES EQUIPMENT section.