B210D-BATTERY VOLTAGE LOW
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
With the ignition on.
- Set Condition:
Battery voltage less than 9 volts for more than 15 seconds.
| Possible Causes |
| RESISTANCE IN THE (A1) BATTERY POSITIVE CIRCUIT |
| RESISTANCE IN THE GENERATOR CASE GROUND |
| GENERATOR OPERATION |
| GENERATOR FIELD CONTROL CIRCUIT OPEN |
| GENERATOR FIELD CONTROL CIRCUIT SHORTED TO GROUND |
| GROUND CIRCUIT OPEN |
| PCM |
Diagnostic Test
1.CHECK FOR ANY POWERTRAIN CONTROL MODULES DTCSNOTE: Make sure the Battery is in good condition. Using the Midtronics Battery Tester, test the Battery before continuing.
NOTE: Inspect the vehicle for after market accessories that may exceed the Generator System output.
NOTE: Make sure the generator drive belt is in good operating condition.
NOTE: Inspect the fuses in the IPM. If an open fuse is found, use the wire diagram/schematic as a guide, inspect the wiring and connectors for damage.
Does the scan tool display any active PCM DTC's?
Yes
- (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) for the diagnostic test procedure.
No
- Check the above conditions that can cause a low voltage condition. Repair as necessary.