B210A-16

B210A-16-SYSTEM VOLTAGE LOW - CIRCUIT VOLTAGE BELOW THRESHOLD

For a complete wiring diagram, refer to the Wiring Information.






- When Monitored:
With the ignition on.

- Set Condition:
If the module detects that the battery voltage is less than 9.0 volts for greater than 5 seconds.





Diagnostic Test

1. CHECK FOR AN INTERMITTENT CONDITION
1. Turn the ignition on, then off, and then on again.
2. With the scan tool, read the Radio DTCs.

Does the scan tool display active: B210A-16-SYSTEM VOLTAGE LOW - CIRCUIT VOLTAGE BELOW THRESHOLD?

Yes

- Go To 2

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 the BODY VERIFICATION TEST. Body Verification Test .

2. CHECK THE BATTERY VOLTAGE TO THE RADIO WITH THE SCAN TOOL
1. With the scan tool in Data Display, read the Radio battery voltage.

Is the battery voltage less than 9.0 volts?

Yes

- Go To 3

No

- Replace the Radio.
- Perform the BODY VERIFICATION TEST. Body Verification Test .

3. CHECK THE BATTERY VOLTAGE TO THE RADIO
1. Disconnect the Radio harness connector.

NOTE:
Check the Radio harness connector for signs of corrosion, pushed out or bent terminals, and correct pin tension.

2. Measure the voltage of the (A933) Fused B+ circuit at the Radio harness connector.

Is the battery voltage less than 9.0 volts?

Yes

- Go To 4

No

- Replace the Radio.
- Perform the BODY VERIFICATION TEST. Body Verification Test .

4. CHECK FOR CHARGING SYSTEM RELATED DTCS IN THE POWERTRAIN CONTROL MODULE (PCM)
1. With the scan tool in ECU View, select PCM and check for any Charging System related DTCs.

Does the scan tool display any Charging System related DTCs?

Yes

- Testing and Inspection and perform the appropriate charging system or battery DTC diagnostic procedure.

No

- Check for voltage drop concerns across the (A933) Fused B+ circuit and repair as needed.
- Perform the BODY VERIFICATION TEST. Body Verification Test .