Memory Seat Module (MSMD)

B210E-BATTERY VOLTAGE HIGH





For a complete wiring diagram, refer to the wiring information Electrical Diagrams.

- 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.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.

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 and Testing and Inspection or 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 condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.
- 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.