Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the heater-A/C control diagnosis system check performed? | -- | Go to Step 2 | Go to Diagnostic System Check |
2 | Check the HVAC fuse in the fuse block. Is the HVAC fuse open? | -- | Go to Step 3 | Go to Step 4 |
3 | Repair short to ground in circuit 41. Is the repair complete? | -- | System OK | -- |
4 |
Is the measured voltage within the specified value? | 9-14V | Go to Step 6 | Go to Step 5 |
5 | Repair poor connection or open in circuit 41. Is the repair complete? | -- | System OK | -- |
6 |
Does the voltage vary? | -- | Go to Step 7 | Go to Step 8 |
7 | Replace the LH electric actuator. Refer to Temperature Actuator Replacement . Is the repair complete? | -- | System OK | -- |
8 | Check for short to ground or short to B+ in circuit 1199. Is there a short to ground or short to B+ in circuit 1199? | -- | Go to Step 9 | Go to Step 10 |
9 | Repair short to ground or short to B+ in circuit 1199. Is the repair complete? | -- | System OK | -- |
10 | Check for a poor connection or open in circuit 1199 between the heater-A/C control harness connector terminal C7 and the LH electric actuator harness connector terminal 6. Is there continuity in circuit 1199? | -- | Go to Step 11 | Go to Step 12 |
11 | Repair poor connection or open in circuit 1199 between the heater-A/C control harness connector terminal C7 and the LH electric actuator harness connector terminal 6. Is the repair complete? | -- | System OK | -- |
12 | Replace the heater-A/C control. For manual systems refer to Control Assembly Replacement and for automatic systems refer to Control Assembly Replacement in Instrument Panel, Gauges and Console. Is the repair complete? | -- | System OK | -- |
