Page text (OCR transcript)
California vehicle only
ECU
+B(+B1)
EGR Gas Temp. Sensor
EGR
Valve
THG
E2
E1
1
There is voltage between ECU terminals THG and E2.
(IG SW ON)
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-35)
Check wiring between ECU terminal E1 and body ground.
OK
BAD
Repair or replace.
Check EGR system.
OK
BAD
Repair or replace.
3
Check EGR gas temp. sensor.
(See page FI-118)
BAD
OK
Replace EGR gas temp.
sensor.
Check wiring between ECU and
EGR gas temp. sensor.
OK
BAD
Try another ECU.
Repair or replace.
ECU
Voltmeter
THG
E2
FI2945
2
ECU
+B1
Voltmeter
E1
FI0312
3
Ohmmeter
Oil
FI0874
