B1438 - Wiper Mode Select Switch Circuit Failure

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

  • Faulty Wiper Mode Select Switch
  • Wiper Mode Select Switch harness is open or shorted
  • Wiper Mode Select Switch circuit poor electrical connection
  • Faulty Body Control Module (BCM)

Possible symptoms

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

B1438 Description

The Body Control Module (BCM) monitors the Wiper Mode Select Switch. The BCM sets the OBDII code when the Wiper Mode Select Switch is not to factory specifications.
OBDII Code B1438 - Wiper Mode Select Switch Circuit Failure - AutoCodes.com

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B1438 Comments

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