EN(H4DOTC)(diag)-69
Diagnostics for Engine Starting Failure
ENGINE (DIAGNOSTICS)
8
CHECK INPUT VOLTAGE OF STARTER RE-
LAY.
1) Remove the starter relay.
2) Connect the connector to ignition switch.
3) Turn the ignition switch to START.
4) Measure the voltage between starter relay
connector and chassis ground.
Connector & terminal
(B225) No. 13 (+) — Chassis ground (–):
Is the voltage 10 V or more?
Go to step 9.
Repair the open
circuit of harness
between starter
relay connector
and ignition switch
connector.
9
CHECK STARTER RELAY.
1) Connect the battery to starter relay termi-
nals No. 15 and No. 16.
2) Measure the resistance between starter
relay terminals.
Terminals
No. 13 — No. 14:
Is the resistance less than 1
:? Go to step 10.
Replace the starter
relay.
10
CHECK HARNESS BETWEEN ECM AND
STARTER RELAY CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from ECM.
3) Measure the resistance of harness between
ECM and starter relay connector.
Connector & terminal
(B136) No. 20 — (B225) No. 16:
Is the resistance less than 1
:? Go to step 11.
Repair the open
circuit of harness
between ECM and
starter relay con-
nector.
11
CHECK TRANSMISSION TYPE.
Is the transmission type AT?
Go to step 16.
Go to step 12.
12
CHECK INPUT VOLTAGE OF STARTER RE-
LAY.
1) Depress the clutch pedal.
2) Turn the ignition switch to START.
3) Measure the voltage between starter relay
connector and chassis ground.
Connector & terminal
(B225) No. 15 (+) — Chassis ground (–):
Is the voltage 10 V or more?
Go to step 13.
Go to step 14.
13
CHECK HARNESS BETWEEN ECM AND
CLUTCH START SWITCH CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the clutch start switch connec-
tor.
3) Measure the resistance of harness between
ECM and clutch start switch connector.
Connector & terminal
(B136) No. 32 — (B106) No. 2:
Is the resistance less than 1
:? Check the ECM
power supply and
ground line. <Ref.
to
EN(H4DOTC)(diag)
-71, CHECK
POWER SUPPLY
AND GROUND
LINE OF ENGINE
CONTROL MOD-
ULE (ECM), Diag-
nostics for Engine
Starting Failure.>
Repair the open
circuit of harness
between ECM and
clutch start switch
connector.
14
CHECK INPUT VOLTAGE OF CLUTCH
START SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the clutch start switch connec-
tor.
3) Turn the ignition switch to START.
4) Measure the voltage between the clutch
start switch connector and chassis ground.
Connector & terminal
(B106) No. 1 (+) — Chassis ground (–):
Is the voltage 10 V or more?
Go to step 15.
Check the follow-
ing item and repair
if necessary.
• Blown out of fuse
• Open or ground
short circuit of har-
ness between igni-
tion switch
connector and
clutch start switch
connector
Step
Check
Yes
No