Diagnostic Test

1) TEST FOR INTERMITTENT CONDITION

Fig 1: SCAN TOOL (STARSCAN)
Courtesy of DAIMLERCHRYSLER CORP.

With the scan tool, record and erase DTC's

Press the Memory Set Switch several times in all positions.

Cycle the ignition from on to off 3 times.

Turn the ignition on.

With the scan tool, read DTC's.

Does the scan tool display MEMORY SWITCH INPUT CIRCUIT STUCK?

Yes
1. Go To step 2).
No
1. The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
2. Perform BODY VERIFICATION TEST - VER 1. (Refer to BODY VERIFICATION TEST - VER 1) .
2) MEMORY SELECTOR SWITCH SHORTED TO GROUND

Fig 2: Checking Memory Selector Switch For Short To Ground
Courtesy of DAIMLERCHRYSLER CORP.

With the scan tool, erase DTC's.

Disconnect the Memory Set Switch connector.

Turn the ignition on.

With the scan tool, read DTC's.

Does the scan tool display MEMORY SWITCH INPUT CIRCUIT STUCK?

No
1. Replace the Memory Set Switch.
2. Perform BODY VERIFICATION TEST - VER 1. (Refer to BODY VERIFICATION TEST - VER 1) .
Yes
1. Go to step 3).
3) (P200) MEMORY SELECT SWITCH MUX CIRCUIT SHORT TO THE GROUND

Fig 3: Checking Memory Select Switch MUX Circuit For Short To Ground
Courtesy of DAIMLERCHRYSLER CORP.

Disconnect the Driver Door Module C3 connector.

Measure the resistance between ground and the (P200) Memory Select Switch MUX circuit.

Is the resistance below 10000.0 ohms?

Yes
1. Repair the Memory Select Switch MUX wire for a short to ground.
2. Perform BODY VERIFICATION TEST - VER 1. (Refer to BODY VERIFICATION TEST - VER 1) .
No
1. Go to step 4).
4) (P200) MEMORY SELECT SWITCH MUX CIRCUIT SHORT TO THE (G920) MEMORY SELECT SWITCH RETURN CIRCUIT

Fig 4: Checking Memory Select Switch MUX Circuit For Short To Memory Select Switch Return Circuit
Courtesy of DAIMLERCHRYSLER CORP.

Measure the resistance between the (P200) Memory Select Switch MUX circuit and the (G920) Memory Select Switch Return circuit in the Driver Door Module C3 connector.

Is the resistance below 10000.0 ohms?

Yes
1. Repair the (P200) Memory Select Switch MUX circuit for a short to the (G920) Memory Select Switch return circuit.
2. Perform BODY VERIFICATION TEST - VER 1. (Refer to BODY VERIFICATION TEST - VER 1) .
No
1. Replace the Driver Door Module.
2. Perform BODY VERIFICATION TEST - VER 1. (Refer to BODY VERIFICATION TEST - VER 1) .