Blower Speed Control Switch

Disconnect blower speed control switch wiring harness connector. Using an ohmmeter, check continuity between specified terminals and switch positions. See TESTING BLOWER SPEED CONTROL SWITCH table. See Fig 1. If continuity is not as specified, replace blower switch.

TESTING BLOWER SPEED CONTROL SWITCH

Switch Position

⁽¹⁾ Continuity Between Terminals

OFF

⁽¹⁾

2 & 5

(D) ⁽²⁾

1, 2 & 5

(D) ⁽³⁾

2, 5 & 7

2, 3 & 5

⁽¹⁾	With switch in any position, continuity should exist between terminals No. 6 and 8 for heater control illumination. With switch in OFF position, continuity should not exist between any other terminals.

⁽²⁾	Circle (D) closest to LO position.

⁽³⁾	Circle (D) closest to HI position.

Fig 1: Blower Speed Control Switch Connector Terminal ID