Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you review the HVAC system operation and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms |
2 | Verify that the blower motor is always on. Does the blower motor operate normally? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Disconnect the blower motor relay. Does the blower motor stop running? | -- | Go to Step 5 | Go to Step 4 |
4 | Repair the short to the voltage in CKT 65 (PPL) wire. Is the repair complete? | -- | Go to Step 10 | -- |
5 |
Does the test lamp light? | -- | Go to Step 6 | Go to Step 9 |
6 | Inspect for a short to voltage in CKT 52 (ORN) wire. Is the circuit OK? | -- | Go to Step 8 | Go to Step 7 |
7 | Repair the short to voltage in CKT 52 (ORN) wire. Is the repair complete? | -- | Go to Step 10 | -- |
8 | Replace the heater and A/C controller. Refer to Control Assembly Replacement . Is the replacement complete? | -- | Go to Step 10 | -- |
9 | Replace the blower motor relay. Is the replacement complete? | -- | Go to Step 10 | -- |
10 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 |
