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DTC B2392

id0902b2855200

DTC B2392 | Discharge headlight Input voltage high
DETECTION CONDITION | Warning • Incorrect servicing of the discharge headlight control module could result in electrical shock. Before servicing the discharge headlight control module, always refer to "Discharge headlight service warnings". (See DISCHARGE HEADLIGHT SERVICE WARNINGS) • Voltage detected at discharge headlight control module terminals D is more than 19 V.
POSSIBLE CAUSE | • Short to power circuit between generator and PCM • Generator malfunction • Battery malfunction • Discharge headlight control module malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT BATTERY VOLTAGE • Measure battery voltage. • Is voltage less than 19 V? | Yes | Go to next step.
No | Inspect charging system.
2 | INSPECT DISCHARGE HEADLIGHT CONTROL MODULE • Clear DTC. • Read DTCs using SST (WDS or equivalent). • Is DTC B2392 displayed again? | Yes | Replace discharge headlight control module. (See DISCHARGE HEADLIGHT CONTROL MODULE REMOVAL/INSTALLATION)
No | Troubleshooting completed.