Counter Overflow : Control Module Reset (ZHZ)

9004-COUNTER OVERFLOW : CONTROL MODULE RESET (ZHZ)

For a complete wiring diagram refer to Diagrams/Electrical.

- When Monitored:

With the ignition on.

- Set Condition:

Battery voltage less than 10.5 volts for more than 15 seconds.






Diagnostic Test

1. CHECK FOR ANY POWERTRAIN CONTROL MODULES DTCS

NOTE: 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 Fuse Relay Block. If an open fuse is found, use the wire diagram/schematic as a guide, inspect the wiring and connectors for damage.

Turn the ignition on.

With the scan tool, read active DTC's.

Does the scan tool display any active DTC's?

Yes

- Repair the Glow Pin Ground circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. Verification Tests

No

- Check the above conditions that can cause a low voltage condition. Repair as necessary.