
California vehicles only
ECU
+B (+B1)
EGR Gas Temp. Sensor
EGR
Valve
THG
E2
E1
F10303
1
No voltage between ECU terminal THG and E2.
(IG SW ON)
ECU
Voltmeter
THG
E2
F03727
2
Check that there is voltage between ECU terminal +B (+B1) and
body ground. (IG SW ON)
OK
NO
Refer to No. 1.
(See page FI-54)
ECU
2
Check wiring between ECU terminal E1 and body ground.
Voltmeter
+B
OK
BAD
Repair or replace.
F03762
Check EGR system.
BAD
Repair or replace.
OK
Ohmmeter
3
Check EGR gas temp. sensor.
(See page FI-118)
BAD
OK
Replace EGR gas temp.
Check wiring between ECU and
sensor.
EGR gas temp. sensor.
Oil
OK
BAD
F02674
Try another ECU.
Repair or replace.