DTC Test: Checking System For Diagnostic Trouble Codes

NOTE: Ensure battery is fully charged before proceeding with test.

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

Attempt to start engine. Crank engine for up to 10 seconds (if necessary). Read and record DTCs. See RETRIEVING DTCS under SELF-DIAGNOSTIC SYSTEM. If scan tool displays NO RESPONSE, go to appropriate NO-START TEST in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
If scan tool will not power up, check for loose cable connections or bad cable. If cable connections and cable are okay, check voltage at terminal No. 16 (Pink wire) on DLC. Voltage should be at least 11 volts. If voltage is not as specified, check wiring circuit and appropriate fuses. See WIRING DIAGRAMS .
If scan tool displays an error message, (i.e., USER-REQUESTED COLD BOOT or USER-REQUESTED WARM BOOT), follow scan tool manufacturer's instructions. If scan tool displays a BUS failure (i.e., SHORT TO BATTERY), this indicates either a scan tool failure or BUS failure. On all models except Avenger and Sebring, diagnose and correct BUS failures. See COMMUNICATIONS under SYSTEM TESTS in appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT. On Avenger and Sebring, diagnose and correct BUS failures, see wiring diagram in BODY CONTROL MODULES - AVENGER & SEBRING article in ACCESSORIES & EQUIPMENT.
On all models, if DTCs are displayed, see SCAN TOOL DTC MESSAGES table and perform appropriate test(s). Only DTCs relating to charging system are listed. For all other DTCs, see appropriate SELF-DIAGNOSTICS article. If no DTCs are displayed, go to TEST CH-1A: CHARGING SYSTEM NO CODE TEST .

SCAN TOOL DTC MESSAGES

Scan Tool Display

DTC

GENERATOR FIELD NOT SWITCHING PROPERLY

BATTERY TEMPERATURE SENSOR VOLTAGE TOO HIGH ⁽¹⁾⁽²⁾

BATTERY TEMPERATURE SENSOR VOLTAGE TOO LOW ⁽¹⁾⁽²⁾

CHARGING SYSTEM VOLTAGE TOO HIGH

CHARGING SYSTEM VOLTAGE TOO LOW

⁽¹⁾	On Avenger and Sebring Coupe, replace PCM. PCM is located in engine compartment, next to battery.

⁽²⁾	Does not apply to Neon.