ZHZ
9004-COUNTER OVERFLOW : CONTROL MODULE RESET (ZHZ)
For a complete wiring diagram Consult 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.