Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

CHECK ECM (FPR VOLTAGE)

Measure the voltage of the ECM connectors.

Standard voltage

ECM (FPR VOLTAGE)

Tester Connection	Condition	Specified Condition
E7-30 (FPR) - E7-1 (E1)	STA signal ON	9 to 14 V
E7-30 (FPR) - E7-1 (E1)	STA signal OFF	0 to 3 V

Fig 1: Checking ECM (EPR Voltage)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE ECM

OK: GO TO NEXT STEP

INSPECT FUEL PUMP RELAY (Marking: F/PUMP)

Remove the fuel pump relay from the engine room relay block.

Measure the resistance of the fuel pump relay.

Standard resistance

FUEL PUMP RELAY (MARKING: F/PUMP)

Tester Connection	Specified Condition
3 - 4	Below 1 Ω
3 - 5	10 kΩ or higher
3 - 4	10 kΩ or higher (when battery voltage is applied to terminals 1 and 2)
3 - 5	Below 1 Ω (when battery voltage is applied to terminals 1 and 2)

Fig 2: Identifying Relay Test Terminals

NG: REPLACE FUEL PUMP RELAY

OK: GO TO NEXT STEP

CHECK HARNESS AND CONNECTOR (FUEL PUMP RELAY - ECM)
1. Check harness and connector (see ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE ECM