Control Module
- Remove A/C-heater control panel from instrument panel. See A/C-HEATER CONTROL PANEL under REMOVAL & INSTALLATION. Disconnect control panel control switch connectors.
- Connect an ohmmeter between A/C-heater control panel 8-pin connector terminals No. 5 (Red wire) and No. 8 (Black/Pink wire). See Fig 1 . Measure resistance with mode switch in each position. See MODE SWITCH RESISTANCE table. If resistance is as specified, check for a blown fuse, poor ground, open or shorted wire, poor connectors or BCM failure. See WIRING DIAGRAM. If resistance is not as specified, replace A/C-heater control panel.
MODE SWITCH RESISTANCE
| Switch Position | Ohms |
|---|---|
| Panel | 828-856 |
| Bi-Level | 1279-1315 |
| Floor | 2302-2358 |
| Mix | 5202-5318 |
| Front Defrost | 99,500-101,500 |