Step
| Action
| Value(s)
| Yes
| No
|
1
|
- Remove the heater and A/C control unit.
- Disconnect connector C1 from the heater and A/C control unit.
- Disconnect the connector from the blower control module.
- Test CKT XM112 (BRN/WHT) for a short to voltage. (Turn ON the
ignition, leaving the engine OFF, when testing for a short to voltage.)
Did you find a short to voltage on CKT XM112?
| --
|
Go to Step 2
|
Go to Step
3
|
2
| Repair the short to voltage on CKT XM112 (BRN/WHT).
Did you complete the repair?
| --
|
Go to Step
4
| --
|
3
| Replace the blower control module.
Did you complete the replacement?
| --
|
Go to Step
4
| --
|
4
|
- Reassemble any connectors/components removed in previous steps.
- Turn the ignition switch to the ON position.
- Select AUTO mode on the heater & A/C control.
- Cycle through all the blower speeds.
Do all the blower speeds operate properly?
| --
| System OK
|
Go to Step 5
|
5
| Replace the heater & A/C control unit.
Did you complete the replacement?
| --
|
Go to Step
6
| --
|
6
| Operate the system for which the symptom occurred.
Is the symptom still present?
| --
| --
| System OK
|