Test C: The Climate Control Illumination Is Inoperative

PINPOINT TEST C: THE CLIMATE CONTROL ILLUMINATION IS INOPERATIVE

C1-C2:

C2 Continued:

Normal Operation
A variable pulse width modulated (PWM) voltage is supplied from the instrument panel dimmer switch to the climate control on circuit 19 (LB/RD). Ground for the manual climate control illumination is through circuit 57 (BK). Ground for electronic automatic temperature control (EATC) illumination is through circuit 676 (PK/OG).

Possible Causes
- circuit 19 (LB/RD) open
- circuit 57 (BK) open
- circuit 676 (PK/OG) open
- manual climate control
- EATC