Operation CHARM: Car repair manuals for everyone.

Test I: The Turn Signal Lamps Are Inoperative

PINPOINT TEST I: THE TURN SIGNAL LAMPS ARE INOPERATIVE


I1-I6:






I6-I8:






I9-I11:






I11-I13:






Normal Operation - Except STX
The smart junction box (SJB) provides voltage to the indicator flasher relay through circuit 8 (OG/YE). The indicator flasher relay routes the voltage to the multifunction switch through circuit 44 (LB). When the multifunction switch is placed in the LH or RH TURN position, the multifunction switch routes the voltage to the LH and RH front turn lamps through circuits 3 (LG/WH) and 2 (WH/LB), respectively. The multifunction switch also routes the voltage to the LH and RH rear lamps through the existing stoplamp circuitry. Ground for the indicator flasher relay is provided through circuit 57 (BK).

Normal Operation - STX
The SJB provides voltage to the indicator flasher relay through circuit 8 (OG/YE). The indicator flasher relay routes the voltage to the multifunction switch through circuit 44 (LB). When the multifunction switch is placed in the LH or RH TURN position, the multifunction switch routes the voltage to the LH and RH front turn lamps through circuits 3 (LG/WH) and 2 (WH/LB), respectively. The multifunction switch also routes the voltage to the LH and RH rear turn lamps through circuits 9 (LG/OG) and 5 (OG/LB), respectively. Ground for the indicator flasher relay is provided through circuit 57 (BK).

Possible Causes
- Fuse
- Circuit 2 (WH/LB) short to ground
- Circuit 3 (LG/WH) short to ground
- Circuit 5 (OG/LB) short to ground
- Circuit 8 (OG/YE) open
- Circuit 9 (LG/OG) short to ground
- Circuit 44 (LB) open, short to ground or voltage
- Circuit 57 (BK) open
- Indicator flasher relay
- Multifunction switch
- SJB