P1B42 GMC - Drive Motor 2 Control Module Hybrid/EV Battery Voltage Isolation Sensing Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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P1B42 GMC Possible Causes

  • Faulty Hybrid/Electric Vehicle Battery Pack

First diagnose P1B42 GMC 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 P1B42 GMC code

    Labor: 1.0

    The cost of diagnosing the P1B42 GMC 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.

P1B42 GMC Possible Symptoms

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

P1b42 Gmc Description

The power inverter module, often referred to as the drive motor generator power inverter module, contains three motor control modules and the hybrid/EV powertrain control module 1. Two of the motor control modules operate their respective drive motor based upon power inverter module commands. The third motor control module controls the auxiliary transmission fluid pump. The motor control modules and the hybrid/EV powertrain control module 1 are part of the power inverter module and are not serviced separately.

The motor control modules test for isolation between each high voltage bus and vehicle chassis whenever high voltage is present at the power inverter module.

OBDII Code P1b42 Gmc - Drive Motor 2 Control Module Hybrid/EV Battery Voltage Isolation Sensing Performance - AutoCodes.com

P1B42 GMC More Information

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