AutoCodes - Cadillac - P0AFB CADILLAC

P0AFB CADILLAC Code - Hybrid Battery System Voltage High

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|P0AFB CADILLAC code possible causes

  • 36 volt battery cable open
  • Hybrid Battery Pack fuse open
  • Hybrid Battery Pack contactor open
  • Hybrid Battery Pack ground cable or connection

|How do I fix the P0AFB 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 connector's pins.

|Cost of diagnosing the P0AFB CADILLAC code

Labor: 1.0

The cost of diagnosing the P0AFB CADILLAC code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are P0AFB CADILLAC code possible symptoms?

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

|P0AFB CADILLAC code description

The Engine Control Module (ECM) monitors the correlation of the generator battery disconnect control module battery voltage and the Starter Generator Control Module (SGCM) output voltage to detect a 36 volt cable open or fuse/relay failure. The ECM also monitors to detect an over voltage condition and protect the MOSFET (load dump). If either one of these conditions is detected, the appropriate Diagnostic Trouble Code (DTC) will set.
OBDII Code P0afb Cadillac - Hybrid Battery System Voltage High -

|Need more information with the P0AFB CADILLAC code?

Need more information on how to fix the P0AFB CADILLAC code? Get Access to Factory Service Manuals

|Need help with a P0AFB CADILLAC code?

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|P0AFB CADILLAC code comments

Help us improve 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 P0afb Cadillac code? Have you replaced any parts?
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Repair Importance Level: 3
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