Inspection Procedure
- CHECK ECM (FPR VOLTAGE)
- Measure the voltage of the ECM connectors.
Standard voltage
TESTER CONNECTION SPECIFIED CONDITION CHARTTester 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 3V NG: REPLACE ECM
OK: GO TO Next Step
- Measure the voltage of the ECM connectors.
- 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
TESTER CONNECTION SPECIFIED CONDITION CHARTTester 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) NG: REPLACE FUEL PUMP RELAY
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: GO TO Next Step
- CHECK HARNESS AND CONNECTOR (FUEL PUMP RELAY - ECM)
- Check harness and connector (see ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: REPLACE ECM