Cars With A Manual Gearbox

1 Connect the BOB and check whether a 12 V supply is present across pin D (4) of the Cruise Control connector and a good ground.
2 If the voltage is not OK, check whether a 12 V supply is present across pin 2 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 whether a 12 V supply is present across connection 1 on 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 remedy the fault.
4 Measure the resistance across pins 1 and 2 of the clutch pedal switch when the 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, change the 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 1 of the clutch pedal switch connector and pin 2 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 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, change the 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 1 of the brake pedal switch connector and pin D (4) of the Cruise Control connector.
If the resistance is > 1 ohm, remedy the fault.