B00CB: Passenger Seat Occupant Position Sensor "E" (Subfault)

What it means

The restraint module monitors passenger-seat occupant position sensor E as part of its assessment of the occupant’s position. It sets this code when the sensor’s signal or circuit does not meet the module’s expected criteria.

At a glance

• Usually lights the airbag (SRS) or body-system warning light

How it works

Passenger occupant position sensor E is one of the inputs the restraint control module uses to assess the passenger’s position. B00CB sets when the module detects that sensor E’s signal is missing or does not meet its expected criteria, leaving that input unreliable.

Common causes

Most likely first.

1. Failed occupant position sensor
2. Loose or damaged connector or wiring
3. Open or short in the sensor circuit
4. Fault in the restraint control module

Symptoms

• Warning light or symbol related to the affected system
• Comfort or safety function impaired

How to diagnose it

1. Confirm B00CB with an SRS-capable scan tool and preserve freeze-frame data and any related sensor E circuit codes.
2. Check live data for passenger occupant position sensor E and look for a stable, plausible response under the manufacturer’s specified conditions.
3. Inspect sensor E’s connector and wiring for corrosion, loose pins, pinched insulation, or damage from seat movement.
4. Follow the manufacturer’s SRS isolation procedure, then test sensor E’s circuit for correct supply and ground, signal continuity, opens, and shorts.
5. Compare sensor E output with the manufacturer’s specification to determine whether the fault follows the sensor or its wiring.
6. If sensor E and its circuit test correctly, inspect restraint-module power, grounds, and connectors before considering a module fault.

Common fixes

• Reconnect the sensor E plug or repair damaged wiring near the passenger seat.
• Repair a confirmed open or short in the sensor E circuit.
• Replace sensor E if its output is outside the manufacturer’s specification.
• Repair a verified restraint-module connector, power, or ground fault.
• Replace or reprogram the restraint control module only when testing confirms the module is at fault.

Can I keep driving?

The vehicle may be driveable, but the restraint system may not correctly use the passenger position information from sensor E. Avoid disturbing under-seat wiring and have the SRS fault diagnosed promptly because passenger protection may be affected.