Pinpoint Test 1: The Turn Signal Lamps Are Inoperative

PINPOINT TEST 1: THE TURN SIGNAL LAMPS ARE INOPERATIVE

Normal Operation

The smart junction box (SJB) sends reference signals to the multifunction switch through circuit (BR/L) (LH turn input) and circuit (BR/W) (RH turn input). When the multifunction switch is switched to the LH or RH TURN positions, the voltage signal is routed to ground. When the SJB detects the multifunction switch in the LH or RH TURN position, the SJB sends voltage to the appropriate turn lamps.

Possible Causes
- Wiring, terminals or connectors
- Multifunction switch
- SJB

Diagnostic Procedure

CAUTION:Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.