B1603 - Lamp Anti-Theft Indicator Circuit Failure

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Lamp Anti-Theft Indicator
  • Lamp Anti-Theft Indicator harness is open or shorted
  • Lamp Anti-Theft Indicator circuit poor electrical connection
  • Faulty Body Control Module (BCM)

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B1603 Description

The Body Control Module (BCM) monitors the Lamp Anti-Theft Indicator. The BCM sets the OBDII code when the Lamp Anti-Theft Indicator is not to factory specifications.
OBDII Code B1603 - Lamp Anti-Theft Indicator Circuit Failure - AutoCodes.com

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B1603 Comments

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