Right Front Door Module
B210A - System Voltage Low
For a complete wiring diagram, refer to.
• When Monitored: At all times.
• Set Condition: When the TIPM sends a message to the door module that the vehicle voltage is below 10.0 volts for over 15 seconds.
Test Step 1 - Check Engine DTCs
• The most probable cause for this DTC in this module is that the charging system or battery has failed causing a low vehicle system voltage.
• Ensure the battery is fully charged and serviceable before proceeding.
• With the scan tool, read the engine DTCs.
Are there any engine charging or starting DTCs present?
Yes
• Perform the appropriate diagnostic procedure.
No
• Go to Test Step 2
Test Step 2 - Test for an Intermittent Condition
• With the scan tool, record and erase the DTCs.
• Start the engine and run for two minutes.
• With the scan tool, the check for DTCs.
Does the scan tool display B210A - System 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 High Resistance
• Using the scan tool, read the battery voltage of the door module.
• Using the scan tool, read the battery voltage of the TIPM (Central Gateway).
Is the voltage within 1.0 volt of each module?
Yes
• Replace the door module.
• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior
No
• Go to Test Step 4
Test Step 4 - Check the Voltage At the Door Module Harness
• Turn the ignition OFF.
• Disconnect the door module C3 Harness connector.
• Turn the ignition ON.
• Using a voltmeter, measure the voltage between the fused B + circuit and the ground(s) in the door module C3 connector.
Is the voltage within one volt of battery voltage?
No
• Repair the fused B + circuit for high resistance.
• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior
Yes
• Replace the door module.
• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior