Test I: The Turn Signal Lamps Are Inoperative

PINPOINT TEST I: THE TURN SIGNAL LAMPS ARE INOPERATIVE

I1-I6:

I6-I9:

I9-I11:

I12-I13:

Normal Operation - Except STX
The smart junction box (SJB) provides voltage to the indicator flasher relay through circuit CBP20 (YE/VT). The indicator flasher relay routes the voltage to the multifunction switch through circuit CLS42 (VT/BN). When the multifunction switch is placed in the LH or RH TURN position, the multifunction switch routes the voltage to the LH or RH front turn lamps through circuits CLS41 (GY/YE) and CLS39 (VT/WH), respectively. The multifunction switch also routes the voltage to the LH or RH rear lamps through the existing stoplamp circuitry. Ground for the indicator flasher relay is provided through circuit GD161 (BK/YE).

Normal Operation - STX
The SJB provides voltage to the indicator flasher relay through circuit CBP20 (YE/VT). The indicator flasher relay routes the voltage to the multifunction switch through circuit CLS42 (VT/BN). When the multifunction switch is placed in the LH TURN position, the multifunction switch routes the voltage to the LH front and rear turn lamps through circuits CLS41 (GY/YE). When the multifunction switch is placed in the RH TURN position, the multifunction switch routes the voltage to the RH front and rear turn lamps through circuits CLS39 (VT/WH). Ground for the indicator flasher relay is provided through circuit GD161 (BK/YE).

Possible Causes
- Fuse
- Circuit CBP20 (YE/VT) open
- Circuit CLS39 (VT/WH) short to ground
- Circuit CLS41 (GY/YE) short to ground
- Circuit CLS42 (VT/BN) open, short to ground or voltage
- Circuit GD161 (BK/YE) open
- Indicator flasher relay
- Multifunction switch
- SJB