Circuit/System Testing
- Ignition/Vehicle OFF, disconnect the harness connector at the appropriate S47 Seat Memory Switch. It may take up to 2 min for all vehicle systems to power down.
- Test for less than 30 Ω between the low reference circuit terminal 1 and ground.
- If 30 Ω or greater
- Ignition/Vehicle OFF, disconnect the X6 harness connector at the K40 Seat Memory Control Module.
- Test for less than 2 Ω in the low reference circuit end to end
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the K40 Seat Memory Control Module.
- Go to next step: If less than 30 Ω
- Ignition ON/Vehicle in Service Mode.
- Press a power seat switch in order to wake up the K40 Seat Memory Control Module.
- Test for 9 V or greater between each signal circuit terminal listed below and ground:
- Memory set switch signal terminal 5
- Memory switch signal terminal 6
- If less than 9 V
- Ignition/Vehicle OFF, disconnect the X6 harness connector at the K40 Seat Memory Control Module.
- Test for infinite resistance between the signal circuit and ground.
- If less than infinite resistance, repair the short to ground on the circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in the signal circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the K40 Seat Memory Control Module.
- Go to next step: If 9 V or greater
- Ignition/Vehicle OFF, disconnect the X6 harness connector at the K40 Seat Memory Control Module, Ignition ON/Vehicle in Service Mode.
- Test for less than 1 V between each signal circuit terminal listed below and ground:
- Memory set switch signal terminal 5
- Memory switch signal terminal 6
- If 1 V or greater
Repair the short to voltage on the circuit.
- Go to next step: If less than 1 V
- Test or replace the S47 Seat Memory Switch.