FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Warning Lamp Circuit Shorted (Active)

Tests 53 - 57:




Tests 58 - 62:




Tests 63 - 66:




Tests 67 - 69:




SYMPTOM:
WARNING LAMP CIRCUIT SHORTED (ACTIVE)


TEST NOTE: This symptom is diagnosed using the test WARNING LAMP CIRCUIT OPEN (ACTIVE).

WHEN MONITORED:
With ignition ON, or the ACM needs to turn the lamp ON because of detection of a code, or during a lamp check.

SET CONDITION:
With voltage and current ON, the airbag warning lamp driver circuit is other than expected.

POSSIBLE CAUSES
- ACM Defective - warning lamp driver circuit open
- ACM Defective - warning lamp driver circuit open 2
- ACM Defective - warning lamp driver CKT shorted
- ACM self test fails
- Airbag warning lamp driver circuit short to GND
- Defective airbag warning lamp - bulb
- Defective warning lamp - circuit board
- Fused ignition Switch output run/start open
- Fused ignition Switch output shorted to ground
- Instrument cluster DEF warning lamp circuit shorted
- Open ground circuit-warning lamp
- Warning lamp always ON - other DTC present
- Warning lamp driver circuit open
- Warning lamp driver circuit short to ground
- Warning lamp driver circuit short to voltage