Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is telling the electric motor to shut down for safety reasons.
This code indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected a condition that requires the safety shutdown of the Drive Motor 'B' Control Module.
The P1E33 code is set when the ECM/PCM 'A' sends a signal to the Drive Motor 'B' Control Module to perform a forced shutdown due to a detected safety issue. This is a protective measure to prevent damage to the vehicle's electric drive system.
• Check Engine Light is on
• Reduced vehicle performance
• Vehicle may not start or drive
• Faulty ECM/PCM
• Faulty Drive Motor 'B' Control Module
• Wiring issues or poor connections in the control circuit
ECM: Engine Control Module
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors related to the Drive Motor 'B' Control Module.
• Test the ECM/PCM and Drive Motor 'B' Control Module for faults.
• Repair or replace damaged wiring or connectors.
• Replace the faulty ECM/PCM if necessary.
• Replace the Drive Motor 'B' Control Module if it is defective.
• OBD-II scanner
• Multimeter
• Basic hand tools
$300 - $1500
Moderate
• Chevrolet Volt
• Chevrolet Bolt
• Cadillac ELR
• Regular maintenance checks
• Ensure all software updates are applied
• Inspect wiring and connectors periodically
Control Module Communication Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional as soon as possible.
Check with your vehicle manufacturer for warranty coverage on control modules.
This code has been more prevalent in hybrid and electric vehicles due to their reliance on complex control systems.
High – Immediate attention is required to prevent potential damage to the vehicle's electric drive system.
Operating the vehicle with this code can lead to unsafe driving conditions. It is recommended to address the issue promptly.
• Vehicle must be in a safe location.
• Ensure all electrical systems are operational.
The Drive Motor 'B' Control Module is typically located near the vehicle's electric motor or integrated within the motor assembly.
Q: Can I drive my car with a P1E33 code?
A: It is not recommended to drive the vehicle as it may lead to further damage or unsafe conditions.
Q: How can I reset the P1E33 code?
A: The code can be reset using an OBD-II scanner, but it is important to fix the underlying issue first.
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