Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
SCEMATIC
REFERENCE:
| ||||
1 | Did you perform the HVAC Diagnostic System Check? | -- | Go to Step 2 | Go to Diagnostic System Check |
2 |
Does the scan tool indicate that the Auto HVAC w Dual Zone option is active? | -- | Go to Step 3 | Go to Step 8 |
3 |
Does the scan tool indicate that the Pass. HVAC Switch parameters are within the specified ranges? | Red: 127-158 Counts Blue: 51-81 Counts None: 204-234 Counts | Go to Step 4 | Go to Step 15 |
4 |
Does the Right Program Number parameter increase when the red button is pressed and decrease when the blue button is pressed? | -- | Go to Step 5 | Go to Step 17 |
5 | Adjust the passenger temperature control from full WARM to full COOL. Do any of the red or blue indicators illuminate? | -- | Go to Step 6 | Go to Step 9 |
6 | Adjust the passenger temperature control from full WARM to full COOL. Did an indicator illuminate for each temperature adjustment except for neutral? | -- | Go to Step 7 | Go to Step 10 |
7 |
Did all of the passenger HVAC control indicators turn OFF? | -- | System OK | Go to Step 17 |
8 | With a scan tool, enable the Auto HVAC w Dual Zone option in the DIM Set Options data list. Did you complete the repair? | -- | Go to Step 21 | -- |
9 |
Does the voltage measure near the specified value? | 12 V | Go to Step 11 | Go to Step 13 |
10 |
Did you find and correct the condition? | -- | Go to Step 21 | Go to Step 12 |
11 | Measure the voltage from the battery positive voltage (B+) circuit of the passenger temperature control to the ground circuit of the passenger temperature control. Does the voltage measure near the specified value? | 12 V | Go to Step 12 | Go to Step 14 |
12 |
Does the voltage go to zero for at least one switch position for each circuit tested? | -- | Go to Step 15 | Go to Step 16 |
13 | Test the battery positive voltage (B+) circuit of the passenger temperature control for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 21 | -- |
14 | Test the ground circuit of the passenger temperature control for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 21 | -- |
15 | Inspect for poor connections at the harness connectors of the passenger temperature control and the passenger door module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 21 | Go to Step 18 |
16 | Inspect for poor connections at the harness connectors of the passenger temperature control and the passenger door module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 21 | Go to Step 19 |
17 | Inspect for poor connections at the harness connector of the instrument panel module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 21 | Go to Step 20 |
18 | Replace the passenger temperature control. Refer to Control Assembly Replacement - Passenger . Did you complete the replacement? | -- | Go to Step 21 | -- |
19 | Replace the passenger door module. Refer to Door Control Module Replacement in Doors. Did you complete the replacement? | -- | Go to Step 21 | -- |
20 | Replace the instrument panel module. Refer to Instrument Panel Module Replacement in Body Control System. Did you complete the replacement? | -- | Go to Step 21 | -- |
21 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
