Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: HVAC Schematics Connector End View Reference: HVAC Connector End Views DEFINITION: The right air temperature switch assembly will not adjust HVAC temperatures and no DTC's have been set. | ||||
1 | Did you perform the HVAC Diagnostic System Check? | -- | Go to Step 3 | |
2 |
| -- | Go to Step 3 | |
3 |
Does the scan tool indicate that the Auto HVAC w Dual Zone option is active? | -- | Go to Step 4 | Go to Step 9 |
4 |
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 5 | Go to Step 16 |
5 |
Does the Right Program Number parameter increase when the temperature up switch is pressed and decrease when the temperature down switch is pressed? | -- | Go to Step 6 | Go to Step 18 |
6 | Adjust the right air temperature switch assembly from full WARM to full COOL. Do any of the red or blue indicators illuminate? | -- | Go to Step 7 | Go to Step 11 |
Adjust the right air temperature switch assembly from full WARM to full COOL. Did an indicator illuminate for each temperature adjustment except for neutral? | -- | Go to Step 8 | Go to Step 10 | |
8 |
Did all of the passenger HVAC control indicators turn OFF? | -- | System OK | Go to Step 18 |
9 | With a scan tool, enable the Auto HVAC w Dual Zone option in the Dash Integration Module Special Functions Set Options data list. Did you complete the repair? | -- | Go to Step 22 | -- |
10 |
Does the voltage measure near the specified value? | 12 V | Go to Step 12 | Go to Step 14 |
11 |
Did you find and correct the condition? | -- | Go to Step 22 | Go to Step 13 |
12 | Measure the voltage from the battery positive voltage circuit of the right air temperature switch assembly to the ground circuit of the right air temperature switch assembly. Does the voltage measure near the specified value? | 12 V | Go to Step 13 | Go to Step 15 |
13 |
Does the voltage go to zero for at least one switch position for each circuit tested? | -- | Go to Step 16 | Go to Step 17 |
14 | Test the battery positive voltage circuit of the right air temperature switch assembly for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 22 | -- |
15 | Test the ground circuit of the right air temperature switch assembly for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 22 | -- |
16 | Inspect for poor connections at the harness connectors of the right air temperature switch assembly and the FPDM. 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 22 | Go to Step 19 |
17 | Inspect for poor connections at the harness connectors of the right air temperature switch assembly and the FPDM. 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 22 | Go to Step 20 |
18 | Inspect for poor connections at the harness connector of the instrument panel integration 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 22 | Go to Step 21 |
19 | Replace the right air temperature switch assembly. Refer to Air Temperature Switch Assembly Replacement - Right Side . Did you complete the replacement? | -- | Go to Step 22 | -- |
20 | Replace the FPDM. Refer to Door Control Module Replacement in Doors. Did you complete the replacement? | -- | Go to Step 22 | -- |
21 | Replace the IPM. Refer to Instrument Panel Module Replacement in Body Control System. Did you complete the replacement? | -- | Go to Step 22 | -- |
22 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
