WIS Document: 3580

| | Checking the pedal switch and selector lever position sensor (automatic transmission) | 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 (selector lever in position D, 1, 2 or 3). There should be zero voltage (0 V) when the selector lever is in position P, R or N. | 2. | If the voltage reading is not OK, check that about 12 V is present on pin 2 of the brake pedal switch when the selector lever is in position D, 1, 2 or 3 and 0 V when it is in position P, R or N. If the voltage is OK, continue with point 5. | 3. | If the voltage is not OK, check that about 12 V is present on pin 4 of the selector lever's 7-pin connector. 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 4 of the selector lever's 7-pin connector. If the resistance is > 1 ohm, check the wiring and rectify the fault. | 4. | Check the wiring for continuity or a short circuit by measuring the resistance across pin 3 of the selector lever's 4-pin connector and pin 2 of the brake pedal switch connector. If the resistance is > 1 ohm, the fault is in the selector lever. Check or adjust the selector lever as described in Service Manual 4:2 "Automatic transmission". If the resistance is > 1 ohm, check the wiring and rectify the fault. | 5. | 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 fit a new one. Depressing the pedal breaks the circuit. If resistance can be measured in the circuit, fit a new pedal switch. | 6. | If the pedal switch is OK, check the wiring for continuity or a short circuit by measuring the resistance across pin 1 of the brake pedal connector and pin D (4) of the Cruise Control connector. The resistance should be > 1 ohm.