B210D-BATTERY VOLTAGE LOW
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
Engine running, during seat motor operation.
- Set Condition:
This code is set immediately after the Seat Memory Module receives a low charging system voltage message over the CAN B Bus or detects voltage under 9.5 volts on the (A110) Fused B(+) circuit.
| Possible Causes |
| CHARGING SYSTEM VOLTAGE LOW |
| (A110) FUSED B(+) CIRCUIT |
| SEAT MEMORY MODULE |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.
Diagnostic Test
1. CHECK PCM FOR CHARGING SYSTEM DTCWith the scan tool, read Powertrain Control Module DTC's.
Are there any Charging System DTC's set in the Powertrain Control Module?
Yes
- (Refer to 8 - ELECTRICAL/CHARGING - DIAGNOSIS AND TESTING) for Charging System diagnostic procedures.
No
- Go To 2
- Perform POWER SEAT SYSTEM VERIFICATION TEST – VER 1.
2. VERIFY THAT DTC B210D-BATTERY VOLTAGE LOW IS ACTIVE
With the scan tool, record and erase DTC's
Turn the ignition switch to the OFF position then start the engine and operate the driver power seat.
With the scan tool, read DTC's.
Does the DTC B210D-BATTERY VOLTAGE LOW reset?
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 POWER SEAT SYSTEM VERIFICATION TEST – VER 1.
3. CHECK THE VOLTAGE ON THE (A110) FUSED B(+) CIRCUIT
Disconnect the Memory Seat 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 vehicle battery.
Is the voltage at the MSM connector the same as measured at the battery?
Yes
- Replace the Memory Seat Module in accordance with the service information.
- Perform POWER SEAT SYSTEM VERIFICATION TEST – VER 1.
No
- Repair the (A110) Fused B(+) circuit as necessary.
- Perform POWER SEAT SYSTEM VERIFICATION TEST – VER 1.