OBDII Code List

C1209 MERCURY - ABS Rear Isolation Valve Circuit Short To Ground

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

  • Faulty ABS Rear Isolation Valve
  • ABS Rear Isolation Valve harness is open or shorted
  • ABS Rear Isolation Valve circuit poor electrical connection

Possible symptoms

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

C1209 Mercury Description

The Anti-Lock Brake System (ABS) Module monitors the ABS Rear Isolation Valve. The ABS Module sets the OBDII code when the ABS Rear Isolation Valve is not to factory specifications.
OBDII Code C1209 Mercury - ABS Rear Isolation Valve Circuit Short To Ground -

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