• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Switch Reference Voltage | 1 | 1 | -- | -- |
Adjustable Pedals Forward Switch Signal | 1 | 1 | B3604 01 | -- |
Adjustable Pedals Rearward Switch Signal | 1 | 1 | B3605 01 | -- |
Adjustable Pedals Motor Forward Control | B3920 02 | B3606 61 | B3920 01 | B3606 5A |
Adjustable Pedals Motor Rearward Control | B3920 02 | B3606 61 | B3920 01 | B3606 5A |
1. Adjustable Pedals Inoperative |
Battery voltage is supplied to the adjustable pedal switch from the memory seat module (MSM). When the pedal switch is operated to move the pedals forward, battery voltage is applied through the switch contacts and the adjustable pedal forward switch signal circuit to the MSM. In response to this signal, the MSM applies battery voltage through the adjustable pedal motor forward control circuit and ground through the adjustable pedal motor rearward control circuit to the motor. The motor runs to move the pedals forward until the switch is released. Moving the pedals rearward works similarly to moving the pedals forward, except that battery positive voltage and ground are applied on the opposite circuits causing the motor to run in the opposite direction.
The MSM may be referenced as the driver position module.
Adjustable Pedals Description and Operation
Control Module References for scan tool information
Ignition ON, observe the scan tool Pedal Forward Switch and Pedal Aft Switch parameters while pressing and releasing the pedal switch in both directions. The reading should change between Active and Inactive for both directions.
⇒ | If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the memory seat module. |
⇒ | If not the specified value, test the signal circuit for short to ground or an open/high resistance. If all circuit tests normal, replace the memory seat module. |
⇒ | If not the specified value, test the signal circuit for short to ground or an open/high resistance. If all circuit tests normal, replace the memory seat module. |
⇒ | If not the specified value, replace the adjustable pedal switch. |
⇒ | If greater than the specified range, replace the adjustable pedal switch. |
⇒ | If not the specified value, replace the adjustable pedal switch. |
⇒ | If greater than the specified range, replace the adjustable pedal switch. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for MSM replacement, setup, and programming |