EBC 340/445ESP AWAL

C2100-BATTERY VOLTAGE LOW (EBC340)





For a complete wiring diagram Refer to Diagram/Electrical. Electrical Diagrams

- When Monitored:

Ignition on.

- Set Condition:

If the sensed ignition voltage drops below 10.0 volts for 100 msec.





Diagnostic Test

1. DTC IS ACTIVE

NOTE: Diagnose and repair any powertrain Charging system DTCs before continuing with this procedure.

NOTE: Ensure the battery is fully charged.

Turn the ignition on.

With the Scan tool, select View DTCs in the Anti-lock Brake Module. Record all DTC information.

Turn the ignition off.

Start the engine.

With the Scan tool read DTCs.

Is the status Active for this DTC?

Yes

- Go To 2

No

- Go To 4

2. (F960) FUSED IGNITION SWITCH CIRCUIT OPEN OR HIGH RESISTANCE





Turn the ignition off.

Disconnect the Anti-lock Brake Module harness connector.

Check connectors - Clean/repair as necessary.

Turn the ignition on.

Using a 12-volt test light connected to ground, check the (F960) Fused Ignition Switch Output circuit.

NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.

Is the test light illuminated and bright?

Yes

- Go To 3

No

- Repair the (F500) Fused Run Relay Output circuit for an open circuit or high resistance.
- Perform ABS Verification ABS Verification Test

3. (Z107) OR (Z923) GROUND CIRCUIT OPEN OR HIGH RESISTANCE





Turn the ignition off.

Using a 12-volt test light connected to B+, check the (Z107) and the (Z127) Ground circuit.

NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.

Is the test light illuminated and bright?

Yes

- Replace the Anti-lock Brake Module.
- Perform ABS Verification ABS Verification Test

No

- Repair the (Z107) and/or the (Z923) Ground circuit(s) for an open circuit or high resistance.
- Perform ABS Verification ABS Verification Test

4. INTERMITTENT DTC

Turn the ignition off.

Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.

Check connectors - Clean/repair as necessary.

Inspect the vehicle for aftermarket accessories that may exceed the Charging System output.

Refer to any Technical Service Bulletins that may apply.

Were any problems found?

Yes

- Repair as necessary.
- Perform ABS Verification ABS Verification Test

No

- Test Complete.