ENGINE (J05E)/TROUBLESHOOTING
2–193
1.
Set the starter key to the "LOCK" position.
2.
Connect the signal check harness to the engine ECU vehicle side
harness. (Do not connect the harness to the ECU.)
3.
Use the electrical tester to measure the resistance between the
terminals of the engine ECU (signal check harness) and ground.
NO
YES
1.
Connect the intake air temperature sensor (intake manifold) con-
nector.
2.
Use the electrical tester to measure the resistance between the
terminals of the engine ECU (signal check harness).
NO
YES
4
Inspect for short-circuit of the intake air temperature sensor (intake manifold) harness
D
E76
E63
SHTS021270300176
Measurement
conditions
Tester
connections
Standard values
Starter key: LOCK
Engine ECU (sig-
nal check har-
ness)
THIA (E63)
–
Ground
E2 (E76)
–
Ground
Do the measurements meet the standard value?
Go to step 5.
Repair or replace the harness.
Perform "After-inspection work" of INFOR-
MATION section.
5
Inspect disconnection of the intake air temperature sensor (intake manifold) harness
D
E76
E63
SHTS021270300177
Measurement
conditions
Tester
connections
Standard values
Starter key: LOCK
Engine ECU (sig-
nal check har-
ness)
THIA (E63)
–
E2 (E76)
20
C {68
F}:
7.336
–
5.794 k
50
C {122
F}:
2.435
–
1.994 k
Do the measurements meet the standard value?
Go to step 6.
Repair or replace the harness.
Perform "After-inspection work" of INFOR-
MATION section.