Power Top

B210D-BATTERY VOLTAGE LOW

For a complete wiring diagram consult Diagrams/Electrical.


- When Monitored:
At all times.

- Set Condition:
Anytime the module senses voltage input below 9.5 volts (motor operating or not). After this code is set, it becomes stored when the voltage exceeds 9.6 volts.








Diagnostic Test


1. CHECK ENGINE DTC's
NOTE: Ensure the battery is fully charged before proceeding.

With the scan tool, read ENGINE DTC's
Are there any ENGINE BATTERY OR CHARGING SYSTEM DTC's present?

No


- Go to 2


Yes


- Diagnose and repair the DTC(s).




2. TEST FOR INTERMITTENT CONDITION
With the scan tool, record and erase DTC's
Start the engine and run for two minutes.
Cycle the ignition from on to off three times.
Turn the ignition on.
With the scan tool, read DTC's.
Does the scan tool display BATTERY VOLTAGE LOW in the Sunroof module only?

Yes


- Go To 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 BODY VERIFICATION TEST - VER 1. Body Verification Test




3. (X13) FUSED B(+) CIRCUIT RESISTED




Lower the headliner and disconnect the Sunroof Motor/Module connector.
Test for a resisted (X13) Fused B(+) circuit by connecting a 12-volt test light between the (X13) Fused B(+) circuit and the (Z909) Ground circuit in the Sunroof Motor/Module connector. The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.
Does the test light illuminate brightly?

Yes


- Replace the Sunroof Motor/Module. Sunroof Motor With Control Unit - Removal
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test


No


- Test the (X13) Fused B(+) and the (Z909) Ground circuits to determine which one has the high resistance. Repair the (X13) Fused B(+) circuit or the (Z909) Ground circuit for high resistance.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test