Glow Plug Control Module harness is open or shorted
Glow Plug Control Module circuit poor electrical connection
How do I Fix the Code P163C Cadillac?
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 connector's pins.
Does your Cadillac have Safety Recalls? → Check here
What is the Cost to Diagnose the Code P163C Cadillac?
Labor: 1.0
The cost of diagnosing the P163C 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.
What are Code P163C Cadillac Possible Symptoms?
Engine Light ON (or Service Engine Soon Warning Light)
Code P163C Cadillac Description
The Glow Plug Control Module (GPCM) has the ability to perform internal diagnostics for the voltage and output state of the glow plugs. The GPCM monitors the battery voltage of the module's main voltage supply circuit, the Ignition 1 Signal circuit, and the Engine Control Module (ECM) Voltage circuit. If the GPCM detects a difference between the GPCM main battery supply circuit and the Ignition 1 Signal circuit greater than 5 V the DTC will set or if the GPCM detects a difference of 3 V between the GPCM main battery supply circuit and the ECM Voltage circuit. The GPCM will send a message to the ECM to set this Diagnostic Trouble Code (DTC). P163C Cadillac Code - Glow Plug Control Module Primary Circuit
Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P163C Cadillac code? Have you replaced any parts? Any information is appreciated. Thanks
