Inspection Procedure
- CHECK ECM (FPR VOLTAGE)
- Measure the voltage according to the value(s) in the table below.
Standard voltage
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Condition Specified Condition FPR (E7-30) - E1 (E7-1) STA signal ON 9 to 14V FPR (E7-30) - E1 (E7-1) STA signal OFF 0 to 3V
NG: REPLACE ECM (See REMOVAL )
OK: Go to Next Step
- Measure the voltage according to the value(s) in the table below.
- INSPECT RELAY (Marking: FUEL PUMP)
- Remove the FUEL PUMP relay from the engine room R/B.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition 3 - 4 Below 1 Ω 3 - 5 10 kΩ or higher 3 - 4 10 kΩ or more (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 RELAY
OK: Go to Next Step
- CHECK HARNESS AND CONNECTOR (FUEL PUMP RELAY - ECM)
- Remove the fuel pump relay from the engine room R/B.
- Disconnect the E7 ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition FUEL PUMP relay terminal 1 - E7-30 (FPR) Below 1 Ω FUEL PUMP relay terminal 1 or E7-30 (FPR) - Body Ground 10 kΩ or higher
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: REPLACE ECM (See REMOVAL )