B18BB

B18BB-WINDOW CONTROL CIRCUIT LOW







- When Monitored:
Whenever the module is awake.

- Set Condition:
When the fused ignition switch output circuit to the power window switch is pulled to ground for over 10 seconds, this code will set.





1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Try to operate the Power Windows up and down several times.
4. Wait 30 seconds.
5. With the scan tool, read DTCs.

Does the scan tool display B18BB-WINDOW CONTROL CIRCUIT LOW?

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. TOTALLY INTEGRATED POWER MODULE (TIPM)




1. Turn the ignition off.
2. Disconnect the Totally Integrated Power Module C7 connector.
3. Measure the resistance between ground and the (F981) Fused Ignition Switch Output circuit in the TIPM C7 connector.

Is the resistance below 10.0 Ohms?

No

- Replace the Totally Integrated Power Module (TIPM).
- Perform the BODY VERIFICATION TEST. Body Verification Test.

Yes

- Go To 3

3. POWER WINDOW SWITCH SHORTED




1. Disconnect the Power Window Switch connector.
2. Measure the resistance between ground and the (F981) Fused Ignition Switch Output circuit in the Window Switch connector.

Is the resistance below 10.0 Ohms?

Yes

- Repair the (F981) Fused Ignition Switch Output circuit for a short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the Power Window Switch.
- Perform the BODY VERIFICATION TEST Body Verification Test.