OBDII Code List

C0663 CADILLAC - Level Control Exhaust Valve Circuit High

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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C0663 CADILLAC Possible Causes

  • Faulty Level Control Exhaust Valve
  • Level Control Exhaust Valve harness is open or shorted
  • Level Control Exhaust Valve circuit poor electrical connection

First diagnose C0663 CADILLAC code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

Cost of diagnosing the C0663 CADILLAC code

    Labor: 1.0

    The cost of diagnosing the C0663 CADILLAC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

C0663 CADILLAC Possible Symptoms

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

C0663 Cadillac Description

The Automatic Level Control exhaust solenoid valve is switched ON or OFF by the Electronic Suspension Control (ESC) module. The ESC module provides a ground whenever exhaust activity is required and during a head-relief sequence which occurs before each compressor start-up. This drive output from the ESC module is continually monitored to determine if the voltage level agrees with the commanded state.
OBDII Code C0663 Cadillac - Level Control Exhaust Valve Circuit High -

C0663 CADILLAC More Information

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C0663 CADILLAC Comments

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