Checking the Pedal Switches (Manual Gearbox)

1 Connect the BOB and check that about 12 V is present across pin D (4) of the Cruise Control connector and a good ground.
2 If the voltage is not OK, check that about 12 V is present across pin 1 of the brake pedal switch connector and a good ground.
If the voltage is OK, continue with point 6.







3 If the voltage is not OK, check that about 12 V is present across pin 1 of the clutch pedal switch and a good ground.
If the voltage is OK, continue with point 4.
If the voltage is not OK, measure the resistance across the load side of the fuse and pin 1 of the clutch pedal switch connector.
The resistance should be ≤ 1 ohm.
If the resistance is > 1 ohm, check the wiring and rectify the fault.
4 Measure the resistance across pins 1 and 2 of the clutch pedal switch when the clutch pedal is depressed and also when it is not depressed.
If the resistance with the pedal in the normal position (not depressed) is > 1 ohm, adjust the pedal switch or perhaps install a new one.
Depressing the pedal breaks the circuit. If resistance can be measured in the circuit, install a new pedal switch.
5 If the clutch pedal switch is OK, check the wiring for continuity or a short circuit by measuring the resistance across pin 3 of the clutch pedal switch connector and pin 1 of the brake pedal switch connector.
The resistance should be ≤ 1 ohm.







6 Measure the resistance across pins 1 and 2 of the brake pedal switch when the brake pedal is depressed and also when it is not depressed.
If the resistance with the pedal in the normal position (not depressed) is > 1 ohm, adjust the pedal switch or perhaps install a new one.
Depressing the pedal breaks the circuit. If resistance can be measured in the circuit, install a new pedal switch.
7 If the brake pedal switch is OK, check the wiring for continuity or a short circuit by measuring the resistance across pin 2 of the brake pedal switch connector and pin D (4) of the Cruise Control connector.
If the resistance is > 1 ohm, rectify the fault.
8 If no fault has been found after carrying out the above checks, continue fault diagnosis as described "Before Control Module Replacement".