B00E5

What it means

B00E5 is the generic (SAE J2012) code for a fault in the deployment control circuit of the second row centre seat belt pretensioner, labelled 'C'. The restraint control module checks the pretensioner's firing circuit, and it set this code because it saw a reading outside the expected range, such as an open circuit, a short or abnormal resistance. The exact fault type and which circuit is 'C' vary by model, so check the manufacturer's data for that vehicle.

Symptoms

• Airbag or SRS warning light on the dashboard
• Restraint system self-test fails at ignition on
• Other restraint codes stored alongside it
• Rear centre belt may feel different or not retract normally
• Warning light may come and go if the connector is loose

Possible causes

• Poor connection at the pretensioner connector or the rear seat harness connector, often after the rear seat has been removed or disturbedlikely
• Damaged, chafed or pinched wiring to the second row centre belt, such as from seat movement or cargolikely
• Faulty pretensioner assembly with an open or high-resistance circuitpossible
• Corrosion or water ingress at the connector or floor wiringpossible
• Previous crash, pretensioner deployment or incomplete repair, with the part not replacedpossible
• Fault inside the restraint control module output stagerare
• Incorrect or aftermarket seat or belt parts fitted, or the wrong connector arrangementrare

How to diagnose

1. Read all stored codes with a scan tool that covers the restraint module, and note whether B00E5 is current or historic and whether other restraint codes are present.
2. Read the freeze frame and status data, and ask about recent work such as rear seat removal, trim work, a collision or a flood.
3. Check the warning light behaviour at ignition on and confirm whether the fault returns after clearing the code.
4. Visually inspect the second row centre belt, its connector and the harness under the rear seat and trim for damage, pinching, corrosion and loose or unlatched connectors.
5. Check that the connector locking tabs and any shorting clips are fully seated and undamaged.
6. Following the manufacturer's procedure, isolate the restraint system (battery disconnected and the specified wait observed) before any wiring checks. Never probe or apply a test light or ordinary meter to a pretensioner circuit.
7. Measure the circuit resistance only with the method and specification in the manufacturer's data, using the approved adapters to check for open circuit, short circuit or high resistance.
8. If the wiring and pretensioner test good, check the restraint module for faults, power and earth supply, and software updates specific to the model.

How to fix

• Reseat, clean or replace a damaged or corroded connector, and make sure it is correctly latched.
• Repair or replace damaged wiring using the manufacturer's approved method, without making unprotected joins in restraint circuits.
• Replace the second row centre belt pretensioner assembly if it is faulty or has been deployed.
• Replace the restraint control module if it is confirmed faulty, then carry out any required coding or setup.
• After repair, clear the code, run the restraint system self-test and confirm the warning light stays off.

Can I keep driving?

Nearby codes

• B00E4GenericSecond Row Right Seat Belt Pretensioner C Deployment Control
• B00E6GenericThird Row Right Seat Belt Pretensioner C Deployment Control