EN(H4SO)(diag)-65
ENGINE (DIAGNOSTICS)
Diagnostics for Engine Starting Failure
10 CHECK INPUT VOLTAGE OF ECM.
1)Connect the main relay connector.
2)Turn the ignition switch to ON.
3)Measure the voltage between ECM connec-
tor and chassis ground.
Connector & terminal
(B135) No. 1 (+) — Chassis ground (–):
(B135) No. 2 (+) — Chassis ground (–):
(B136) No. 23 (+) — Chassis ground (–):
Is the voltage more than 10 V? Check ignition
control system.
<Ref. to
EN(H4SO)(diag)-
66, IGNITION
CONTROL SYS-
TEM, Diagnostics
for Engine Start-
ing Failure.>
Repair open or
ground short cir-
cuit in harness
between ECM
connector and
main relay connec-
tor.
Step Check Yes No
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