Fold and Stow Seats

B210E - Battery Voltage High






For a complete wiring diagram, refer to.

• When Monitored: Engine running, during seat operation.

• Set Condition: This code is set immediately after the folding seat module receives a high charging system voltage message over the CAN interior bus or detects voltage over 16.5 volts on the B+ circuit.






Test Step 1 - Check PCM/ECM for charging system DTC

• With the scan tool, read ECM/PCM DTCs.

Are there any charging system DTCs set in the ECM/PCM?

Yes

Refer to => Non - DTC Based Diagnostics.

No

• Go to Test Step 2 => [ Test
Step 2 - Test for Intermittent Condition ]

Test Step 2 - Test for Intermittent Condition

• With the scan tool, record and erase DTCs.

• Turn the ignition switch to the OFF position then start the engine and let run for one minute.

• Attempt to operate the power folding seat.

• With the scan tool, read DTCs.

Does the scan tool display active this DTC?

Yes

• Go to Test Step 3 => [ Test
Step 3 - Check the Voltage on the B+ Circuit ]

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 Folding Seat System Verification Test. Refer to => Non-DTC Based Diagnostics. Power Folding Seat System Verification Test

Test Step 3 - Check the Voltage on the B+ Circuit






• Turn the ignition OFF.

• Gain access to the power folding seat C392 12 way in - line connector.

• Start the engine and let idle.

• Backprobe and measure the voltage on the B+ circuit at the in - line harness connector and compare to voltage at the vehicle battery.

Is the voltage at the B+ circuit the same as measured at the battery?

Yes

• Test the B+ circuit from the C392 12 way in - line connector to the folding seat module C1 connector and repair if necessary, if circuit is OK replace the folding seat module.

• Perform Power Folding Seat System Verification Test. Refer to => Non-DTC Based Diagnostics. Power Folding Seat System Verification Test

No

• Repair the B+ circuit as necessary.

• Perform Power Folding Seat System Verification Test. Refer to => Non-DTC Based Diagnostics. Power Folding Seat System Verification Test