Toyota T100 1996 Service Manual page 420

DI−156
2 Check for open in harness or ECM.
ON
Intake Air
Temp. Sensor
3
4
BE6653
P19555
NG
3 Check for open in harness or ECM.
ON
Intake Air
Temp. Sensor
3
4
For M/T
THA
For A/T
E2
BE6653
P19553
P20223
P20199
NG
Confirm good connection at ECM.
If OK, check and replace ECM.
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS
ECM
5 V
12 14
THA
E6 E6
9 22
E2
E6 E6
E1
(M/T) (A/T)
A00046
ECM
5 V
12 14
THA
E6 E6
9 22
E2
E6 E6
E1
(M/T)(A/T)
E2
THA
A00102
− ENGINE (5VZ−FE)
PREPARATION:
(a) Disconnect the mass air flow meter connector.
(b) Connect the sensor wire harness terminals together.
(c) Turn the ignition switch ON.
CHECK:
Read temp. value on the OBD II scan tool or TOYOTA
hand−held tester.
OK:
Temp. value: 140°C (284°F) or more
OK Confirm good connection at sensor. If OK,
replace mass air flow meter.
PREPARATION:
(a) Remove the right cowl side trim (See page SF−61).
(b) Connect between terminals THA and E2 of the ECM
connector.
HINT:
The mass air flow meter connector is disconnected.
Before checking, do a visual and contact pressure check for the
ECM connector (See page IN−26).
(c) Turn the ignition switch ON.
CHECK:
Read temp. value on the OBD II scan tool or TOYOTA
hand−held tester.
OK:
Temp. value: 140°C (284°F) or more
OK Open in harness between terminals E2 or THA,
repair or replace harness.