Power Liftgate Module

B210D - Battery Voltage Low






For a complete wiring diagram, refer to.

• When Monitored: At all times.

• Set Condition: Whenever the liftgate is activated, if the voltage is below 10.5 volts, within 15 seconds prior to power operation, this code will set.






Test Step 1 - Check For PCM DTCs

• Ensure the battery is fully charged and serviceable before proceeding.

• With the scan tool, read PCM DTCs.

Are there any PCM DTCs present?

No

• Go to Test Step 2.

Yes

• Refer to symptom list for problems related to engine.

Test Step 2 - Test for an Intermittent Condition

• With the scan tool, record and erase DTCs.

• Start the engine and run for two minutes.

• With the scan tool, check for DTCs.

Does the scan tool display B210D - Battery Voltage Low?

Yes

• Go to Test Step 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 the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 3 - Check the Fused B+ Circuit for an Open or High Resistance






• The test lamp must illuminate brightly. Compare the brightness to that of a direct connection to the battery.

• Turn the ignition OFF.

• Disconnect the power liftgate module C3 harness connector.

• Turn the ignition ON.

• Using a 12 volt test lamp connected to ground, check the fused B+ circuit.

Does the test tight illuminate brightly?

Yes

• Go to Test Step 4

No

• Repair the fused B+ circuit for an open or high resistance.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 4 - Check the Ground Circuit for an Open or High Resistance






• The test lamp must illuminate brightly. Compare the brightness to that of a direct connection to the battery.

• Using a 12 volt test lamp, connect one end to the fused B+ circuit and the other end to the ground in the liftgate C3 connector.

Does the test tight illuminate brightly?

Yes

• Replace the power liftgate module.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Repair the ground circuit for an open or high resistance.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior