Blower Speed Control Switch
Disconnect blower switch connector. Check for continuity at specified terminals. See TESTING BLOWER SPEED CONTROL SWITCH table. See Fig 1 and Fig 2 . If continuity is not as specified, replace heater control assembly.
TESTING BLOWER SPEED CONTROL SWITCH
| Switch Position | Continuity Between Terminals |
|---|---|
| OFF | No Continuity |
| 1 | 27, 12 & 23 |
| 2 | 26, 12 & 23 |
| 3 | 25, 12 & 23 |
| 4 | 24, 12 & 23 |