Checking wiring and sensors
Check the wiring between the pedal position sensor:
- terminal #1 and control module terminal #7 (#A7)
- terminal #2 and control module terminal #5 (#A5)
- terminal #3 and control module terminal #3 (#A3).
check for an open-circuit, a short-circuit to ground and a short-circuit to supply voltage.
HINT: Connect an ohmmeter between terminals #2 and #3 on the pedal position sensor connector.
HINT: The resistance must be approximately 0.5 kΩ with the brake pedal unaffected and approximately 2.5-3 kΩ when the brake pedal is depressed.
HINT:
HINT: Connect an ohmmeter between terminals #1 and #3 on the pedal position sensor connector.
HINT: The resistance must be approximately 2.5-3 kΩ with the brake pedal unaffected and approximately 0.5 kΩ with depressed brake pedal.
HINT:
HINT: Replace the pedal position sensor if the resistance is incorrect.
Replace the pedal position sensor if no fault is found.
Other information
- To connect the breakout box, see Connecting the Breakout Box
- To replace the pedal position sensor, see Pedal sensor power brake booster, replacing
- For information about signals, see Signal specification, brake control module (BCM) with DSTC (dynamic stability and traction control)
- Checking wiring and terminals
- Continue
Refer to Verification