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Home >> Lexus >> 2003 >> LX 470 >> Repair and Diagnosis >> Body & Frame >> Towing Systems >> Trailer Towing >> Inspection

Trailer Towing: Inspection

INSPECT TOWING CONVERTER CIRCUIT 

Remove the towing converter with connector being connected and inspect the wire harness side connector from the back side, as shown in the table.

Fig 1: Identifying Connector Terminals
G03375749Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TESTER CONNECTION SPECIFIED CONDITION

Tester connection Condition Specified condition
4-6 Turn signal switch LEFT or hazard warning switch ON 10-14V <--> 0V
Turn signal switch LEFT and stop light switch ON (Brake pedal depressed) 10-14V <--> 0V
Turn signal switch OFF, hazard warning switch OFF and stop light switch OFF (Brake pedal released) O V
Stop light switch ON (Brake pedal depressed) 10-14V
6-9 Turn signal switch LEFT or hazard warning switch ON 10-14V <--> 0V
Turn signal switch OFF or RIGHT and hazard warning switch OFF O V
6 - Body ground Always Continuity
2-6 Turn signal switch RIGHT or hazard warning switch ON 10-14V <--> 0V
Turn signal switch RIGHT and stop light switch ON (Brake pedal depressed) 10-14V <--> 0V
Turn signal switch OFF, and hazard warning switch OFF and stop light switch OFF (Brake pedal released) O V
Stop light switch ON (Brake pedal depressed) 10-14V <--> 0V
1-6 Always 10-14V
6-8 Stop light switch ON (Brake pedal depressed) 10-14V
Stop light switch OFF (Brake pedal released) O V
3-6 Turn signal switch RIGHT or hazard warning switch ON 10-14V <--> 0V
Turn signal switch OFF or LEFT and hazard warning switch OFF O V

If the circuit is not as specified, inspect the circuit connected to other parts.