Memory Seat Module (MSMD)

B210E-BATTERY VOLTAGE HIGH







- When Monitored:
Engine running, during seat operation.

- Set Condition:
This code is set immediately after the Memory Seat Module (MSM) receives a high charging system voltage message over the CAN Interior Bus or detects voltage over 16.5 volts on the (A210) Fused B(+) circuit.





1. CHECK ECM/PCM FOR CHARGING SYSTEM DTC
1. With the scan tool, read ECM/PCM DTC's.

Are there any Charging System DTC's set in the ECM/PCM?

Yes

- Testing and Inspection for Charging System diagnostic procedures.

No

- Go To 2

2. TEST FOR INTERMITTENT CONDITION
1. With the scan tool, record and erase DTC's
2. Turn the ignition switch to the OFF position then start the engine and let run for one minute.
3. Attempt to operate the Driver Power Seat.
4. With the scan tool, read DTC's.

Does the scan tool display active this DTC?

Yes

- Go To 3

No

- 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.
- Perform POWER SEAT SYSTEM VERIFICATION TEST. Power Seat System Verification Test.

3. CHECK THE VOLTAGE ON THE (A210) FUSED B(+) CIRCUIT




1. Turn the ignition off.
2. Disconnect the Memory Seat Module harness connector.
3. Start the engine and let idle.
4. Measure the voltage on the (A210) Fused B(+) circuit at the Memory Seat Module harness connector and compare to voltage at the vehicles battery.

Is the voltage at the Memory Seat Module connector the same as measured at the battery?

Yes

- Replace the Memory Seat Module.
- Perform POWER SEAT SYSTEM VERIFICATION TEST. Power Seat System Verification Test.

No

- Repair the (A210) Fused B(+) circuit as necessary.
- Perform POWER SEAT SYSTEM VERIFICATION TEST. Power Seat System Verification Test.