Brake Pedal Position Sensor Circuit
1997-1997 Jeep Wrangler 4.0L I6
The 1997 Jeep Wrangler is equipped with a 4.0L inline-6 engine. Below you'll find detailed c0100 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
General malfunction in the brake pedal position sensor, which provides analog brake apply data to the ABS/stability module.
Symptoms
- ABS warning light
- Stability control disabled
- Regenerative braking fault on hybrids
- Brake assist may not activate
Common Causes
- Faulty brake pedal position sensor
- Sensor wiring damage
- Connector corrosion at sensor
- ABS module input failure
Diagnostic Steps
- Read brake pedal position with scan tool while pressing pedal
- Check for smooth, proportional signal
- Inspect sensor wiring and connector
- Test sensor supply voltage
- Check for related brake switch codes
Repair Notes
Replace brake pedal position sensor. Verify smooth signal across full pedal travel.
Related Codes
Other Chassis Codes
- C0021LF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0025LF Wheel Speed Sensor Circuit Intermittent
- C0026RF Wheel Speed Sensor Circuit Intermittent
- C0027LR Wheel Speed Sensor Circuit Intermittent
- C0028RR Wheel Speed Sensor Circuit Intermittent
- C0035Left Front Wheel Speed Sensor Circuit
- C0036Left Front Wheel Speed Signal Erratic
C0100 on Other Vehicles
Common Questions
What does code C0100 mean on a 1997-1997 Jeep Wrangler?
C0100 stands for "Brake Pedal Position Sensor Circuit". General malfunction in the brake pedal position sensor, which provides analog brake apply data to the ABS/stability module.
What are the symptoms of C0100 on a Jeep Wrangler?
Common symptoms of C0100 include: ABS warning light, Stability control disabled, Regenerative braking fault on hybrids, Brake assist may not activate.
What causes C0100 on a 1997-1997 Jeep Wrangler?
Common causes of C0100 include: Faulty brake pedal position sensor, Sensor wiring damage, Connector corrosion at sensor, ABS module input failure.
Last updated: March 2026