Go to step 4.
NO -
Replace the brake pedal position switch See: Brakes and Traction Control/Brake Pedal Assy/Adjustments.?
4. Short the SCS line with the HDS.
5. Disconnect the PCM connector A (49P).
6. Turn the ignition switch to ON (II).
7. Measure the voltage between PCM connector A (49P) terminal No. 8 and body ground.
Is there 0.1 V or more when the brake pedal is released?
YES -
Repair a short to power in the wire between the brake pedal position switch and the PCM.?
NO -
Go to step 8.
8. Turn the ignition switch to LOCK (0).
9. Reconnect all connectors.
10. Update the PCM if it does not have the latest software See: Powertrain Management/Computers and Control Systems/Engine Control
Module/Testing and Inspection/Programming and Relearning/PCM Update, or substitute a known-good PCM.
11. Turn the ignition switch to ON (II).
12. Clear the DTC with the HDS.
13. Test-drive the vehicle at 8 mph (12 km/h) for 60 seconds or more.
NOTE: Drive the vehicle on the road, not on a lift.
14. Check for DTCs with the HDS.
Is DTC 137 indicated?
YES -
Check for loose terminals in the PCM connector A (49P). If the PCM was updated, substitute a known-good PCM, then retest. If the PCM was
substituted, go to step 15.
NO -
If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM See: Powertrain
Management/Computers and Control Systems/Engine Control Module/Service and Repair.?
15. Update the VSA modulator-control unit if it does not have the latest software See: Brakes and Traction Control/Antilock Brakes / Traction
Control Systems/Traction Control Module/Testing and Inspection. If the unit already has the latest software, substitute a known-good VSA
modulator-control unit See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Traction Control Module/Service and
