On-Vehicle Inspection

WARNING: This page is about a different car, the 2007 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT TURN SIGNAL FLASHER ASSEMBLY CIRCUIT

If circuit is as specified, replace the relay.

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

Disconnect the flasher relay connector.

Inspect the connector on the wire harness side, as shown in TURN SIGNAL FLASHER ASSEMBLY CIRCUIT (STANDARD VOLTAGE) and TURN SIGNAL FLASHER ASSEMBLY CIRCUIT (OK) .

Standard voltage

TURN SIGNAL FLASHER ASSEMBLY CIRCUIT (STANDARD VOLTAGE)

Tester Connection	Condition	Specified Condition
1 - Body ground	Ignition switch ON	10 to 14 V
1 - Body ground	Ignition switch ACC or OFF	Below 1 V
4 - Body ground	Always	10 to 14 V

TURN SIGNAL FLASHER ASSEMBLY CIRCUIT (OK)

Tester Connection	Condition	Specified Condition
2 - Body ground	Always	Continuity
3 - Body ground
7 - Body ground
5 - Body ground	Turn signal switch LEFT
5 - Body ground	Turn signal switch is RIGHT or OFF	No continuity
6 - Body ground	Turn signal switch RIGHT	Continuity
6 - Body ground	Turn signal switch is LEFT or OFF	No continuity
8 - Body ground	Hazard warning switch ON	Continuity
8 - Body ground	Hazard warning switch OFF	No continuity

INSPECT TOWING CONVERTER RELAY CIRCUIT

Remove the towing converter with connector still connected and inspect the wire harness side connector from the back side as shown in TOWING CONVERTER RELAY CIRCUIT (STANDARD VOLTAGE) and TOWING CONVERTER RELAY CIRCUIT (OK) .

Standard voltage

TOWING CONVERTER RELAY CIRCUIT (STANDARD VOLTAGE)

Tester Connection	Condition	Specified Condition
4 - 6	Turn signal switch LEFT or hazard warning switch ON	10 to 14 V -> Below 1 V -> 10 to 14 V
	Turn signal switch LEFT and stop light switch ON (brake pedal depressed)	10 to 14 V -> Below 1 V -> 10 to 14 V
	Turn signal switch OFF, hazard warning switch OFF and stop light switch OFF (brake pedal released)	Below 1 V
	Stop light switch ON (brake pedal depressed)	10 to 14 V
6 - 9	Turn signal switch LEFT or hazard warning switch ON	10 to 14 V -> Below 1 V -> 10 to 14 V
6 - 9	Turn signal switch OFF or RIGHT and hazard warning switch OFF	Below 1 V
2 - 6	Turn signal switch RIGHT or hazard warning switch ON	10 to 14 V -> Below 1 V -> 10 to 14 V
	Turn signal switch RIGHT and stop light switch ON (brake pedal depressed)	10 to 14 V -> Below 1 V -> 10 to 14 V
	Turn signal switch OFF, hazard warning switch OFF and stop light switch OFF (brake pedal released)	Below 1 V
	Stop light switch ON (brake pedal depressed)	10 to 14 V -> Below 1 V -> 10 to 14 V
1 - 6	Always	10 to 14 V
6 - 8	Stop light switch ON (brake pedal depressed)	10 to 14 V
6 - 8	Stop light switch OFF (brake pedal released)	Below 1 V
3 - 6	Turn signal switch RIGHT or hazard warning switch ON	10 to 14 V
3 - 6	Turn signal switch OFF or RIGHT and hazard warning switch OFF	Below 1 V

TOWING CONVERTER RELAY CIRCUIT (OK)

Tester Connection	Specified Connection
6 - Body ground	Continuity

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