EN(H6DO)-74
ENGINE (DIAGNOSTICS)
DIAGNOSTICS FOR ENGINE STARTING FAILURE
7
CHECK INPUT VOLTAGE OF INHIBITOR
SWITCH.
1) Turn ignition switch to OFF.
2) Disconnect connector from inhibitor switch.
3) Connect connector to ignition switch.
4) Measure input voltage between inhibitor
switch connector terminal and engine
ground while turning ignition switch to ST.
Connector & terminal
(B12) No. 12 (+) — Engine ground (–):
Is the voltage more than 10 V? Go to step 8.
Repair open or
ground short cir-
cuit in harness
between inhibitor
switch and ignition
switch.
8
CHECK INHIBITOR SWITCH CIRCUIT.
1) Turn ignition switch to OFF.
2) Place the selector lever in the “P” or “N”
position.
3) Separate transmission harness connector.
4) Measure resistance between transmission
harness connector terminals.
Connector & terminal
(T3) No. 11 — No. 12:
Is the measured value less than the speci-
fied value?
1
Ω
Repair open or
short circuit in har-
ness between
starter motor and
inhibitor switch.
Go to step 9.
9
CHECK TRANSMISSION HARNESS.
1) Disconnect connector from inhibitor switch.
2) Measure resistance of harness between
transmission harness and inhibitor switch
connector.
Connector & terminal
(T3) No. 12 — (T7) No. 12:
(T3) No. 11 — (T7) No. 7:
Is the measured value less than the speci-
fied value?
1
Ω
Go to step 10.
Repair open or
short circuit in har-
ness between
transmission har-
ness and inhibitor
switch connector.
10
CHECK POOR CONTACT.
Check poor contact in inhibitor switch connec-
tor.
Is there poor contact in inhibitor switch connec-
tor?
There is poor contact.
Repair poor con-
tact in inhibitor
switch connector.
Replace inhibitor
switch.
Step
Value
Yes
No