Test TC-1A - Checking For Diagnostic Trouble Codes (DTCS)
WARNING: This page is about a different car, the 1995 Jeep Wrangler, 1995 Jeep Grand Cherokee, and 1995 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Battery must be fully charged before proceeding with any test.
- Attempt to start engine. If engine will not start, crank engine for at least 10 seconds. Connect DRB to engine data link connector. Record DRB trouble code messages.
- If the DRB has a blank screen or displays RAM TEST FAILURE, CARTRIDGE ERROR, KEY PAD TEST FAILURE, or LOW OR HIGH BATTERY, DRB failure is indicated. To diagnose and correct, see the appropriate TESTS W/CODES article in the ENGINE PERFORMANCE section. Refer to the G - TESTS W/CODES ARTICLE MENU & LINKS table.
- If DRB displays NO RESPONSE, go to TEST NS-6A . Refer to the appropriate TESTS W/CODES article in the ENGINE PERFORMANCE Section. See the G - TESTS W/CODES ARTICLE MENU & LINKS table. If trouble code messages are displayed, see DRB TROUBLE CODES/MESSAGES table. If no trouble code messages are displayed and a driveability problem is present, go to TEST NTC-1A . If no trouble code messages are displayed and a no-start problem is present, go to TEST NS-1A . See the appropriate TESTS W/CODES article in the ENGINE PERFORMANCE section. Refer to the G - TESTS W/CODES ARTICLE MENU & LINKS table. If no trouble code messages are displayed and a charging problem is present, go to TEST CH-1A .
DRB TROUBLE CODES/MESSAGES MENU
| DRB Message | Test No. |
|---|---|
| GENERATOR FIELD NOT SWITCHING PROPERLY | TC-33A |
| GENERATOR FIELD NOT SWITCHING PROPERLY | TC-33B |
| BATTERY TEMP SENSOR VOLTS OUT OF LIMIT | TC-34A |
| CHARGING SYSTEM VOLTAGE TOO LOW | TC-35A |
| CHARGING SYSTEM VOLTAGE TOO HIGH | TC-36A |
| CHARGING SYSTEM VOLTAGE TOO HIGH | TC-36B |