2007 Grand Cherokee WK Factory Service Manual 8 - ELECTRICAL

B210E-BATTERY VOLTAGE HIGH

For a complete wiring diagram Refer to Section 8W.



Possible Causes
 
CHARGING SYSTEM VOLTAGE HIGH
 
(A110) FUSED B(+) CIRCUIT
 
MEMORY SEAT MODULE
 


Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.



Diagnostic Test

1. CHECK PCM FOR CHARGING SYSTEM DTC

With the scan tool, read Powertrain Control Module DTC's.

Are there any Charging System DTC's set in the Powertrain Control Module?

Yes


No

2. VERIFY THAT DTC B210E-BATTERY VOLTAGE HIGH IS ACTIVE

With the scan tool, record and erase DTC's
Turn the ignition switch to the OFF position then start the engine and let run for one minute.
Attempt to operate the driver power seat.
With the scan tool, read DTC's.

Does the DTC B210E-BATTERY VOLTAGE HIGH reset?

Yes


No

3. CHECK THE VOLTAGE ON THE (A110) FUSED B(+) CIRCUIT



Disconnect the Seat Memory Module connector.

NOTE: Check connectors - Clean and repair as necessary.


Start the engine and let idle.
Measure the voltage on the (A110) Fused B(+) circuit at the MSM connector and compare to voltage at the vehicles battery.

Is the voltage at the MSM connector the same as measured at the battery?

Yes


No