ENGINE (J05E)/TROUBLESHOOTING2–256
1. Set the starter key to the "LOCK" position.
2. Connect the signal check harness to the engine ECU. (Do not con-
nect harness to the engine ECU.)
3. Use the electrical tester to measure the resistance between the
terminals of the engine ECU and ground.
1. Connect the engine coolant temperature sensor 1 connector.
2. Use the electrical tester to measure the resistance between the
terminals of the engine ECU (signal check harness).
5
Inspect for short-circuit of the engine coolant temperature sensor 1 harness
Measurement
conditions
Tester
connections
Standard values
Starter key: LOCK
Engine ECU (sig-
nal check har-
ness)
THW (E66) –
Ground
E5 (E58) – Ground
Do the measurements meet the standard value?
Go to step 6. Repair or replace the harness.
Perform "After-inspection work" of INFOR-
MATION section.
6
Inspect disconnection of the engine coolant temperature sensor 1 harness
Measurement
conditions
Tester
connections
Standard values
Starter key: LOCK
Engine ECU (sig-
nal check har-
ness)
THW (E66) –
E5 (E58)
20 C {68 F}:
2.59 – 2.32 k
80 C {176 F}:
0.326 – 0.310 k
Do the measurements meet the standard value?
Go to step 7. Repair or replace the harness.
Perform "After-inspection work" of INFOR-
MATION section.
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