Message Systems

B210D-BATTERY VOLTAGE LOW





For a complete wiring diagram Refer to Diagrams/Electrical.

- When Monitored:

With the ignition switch on.

- Set Condition:

The Multi-Purpose Module (Police And Taxi Interface Module-PTIM) has detected the Fused (B+) input voltage below a calibrated value.





Diagnostic Test

1.CHECK FOR ACTIVE DTC

With the scan tool, read the active DTCs.

Erase the DTCs.

Turn the ignition off, wait 10 seconds, then turn the ignition on.

With the scan tool, read the active DTC's.

Does the scan tool display this DTC as active?

Yes

- Go To 2

No

- If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

2.VERIFY OPERATION OF THE VEHICLE CHARGING SYSTEM

NOTE: Repair any PCM charging/cranking DTCs before proceeding with this test.

NOTE: Verify the battery is fully charged.

Are any charging system DTCs present?

Yes

- Refer to Communications.

No

- Go To 3

3.CHECK (A913) FUSED (B+) CIRCUIT FOR AN OPEN





Turn the ignition off.

Disconnect the Multi-Purpose Module (Police And Taxi Interface Module-PTIM) C1 harness connector.

Turn the ignition on.

Measure the voltage of the (A913) Fused (B+) circuit in the Multi-Purpose Module (Police And Taxi Interface Module-PTIM) harness connector.

Is the voltage above 10.0 volts?

Yes

- Go to 4

No

- Repair the (A913) Fused (B+) circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

4.CHECK THE MULTI-PURPOSE MODULE (POLICE AND TAXI INTERFACE MODULE-PTIM)

Turn the ignition off.

Disconnect all Multi-Purpose Module (Police And Taxi Interface Module-PTIM) and aftermarket light/siren controller harness connectors.

Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems.

Connect all Multi-Purpose Module (Police And Taxi Interface Module-PTIM) and aftermarket light/siren controller harness connectors.

Turn the ignition on.

With the scan tool monitor active codes as you work through the following step.

Wiggle the wiring harness and connectors of the Multi-Purpose Module (Police And Taxi Interface Module-PTIM) and aftermarket light/siren controller.

If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems.

Is B210D-BATTERY VOLTAGE LOW still displayed?

Yes

- Replace the Multi-Purpose Module (Police And Taxi Interface Module-PTIM).
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Repair is complete. The problem may have been caused by a loose or corroded terminal.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test