WHEN IGNITION SWITCH
IS
TURNED ON, MIL NOT
COME
ON
Turn the ignition switch OFF.
Disconnect the ECM
21
P (Black) connector.
Ground the ECM
21
P (Black) connector
[1]
terminal of
the wire harness side connector with a jumper wire.
CONNECTION: A20 (White/blue) - Ground
TOOL:
Test probe, 2 pack
07ZAJ-RDJA 110
Turn the ignition switch
ON
and engine stop switch
"0",
the MIL should come on.
If the MIL comes on, replace the ECM with a known
good one and recheck.
• If the MIL does not come
on,
check for open circuit
in
the White/blue wire between the speedometer
and
ECM.
WHEN THE IGNITION SWITCH
IS
TURNED ON, THE MIL DOES NOT GO
OFF WITHIN A SECONDS
(ENGINE STARTS)
Turn the ignition switch OFF.
Disconnect the ECM
21
P (Black) connector.
Turn the ignition switch
ON
and engine stop switch "O",
the MIL should stay off.
• If the MIL comes
on,
check for short circuit
in
the
White/blue wire between the speedometer
and
ECM.
• If the MIL turns off, check the following.
Disconnect the ECM
21
P (Gray) connector.
Check for continuity between the ECM
21
P (Gray)
connector
[1]
and ground.
CONNECTION:
820
(Brown) -
814
(Blue/green)
STANDARD: No continuity
TOOL:
Test probe, 2 pack 07ZAJ-RDJA 110
• If there
is
continuity, check for short a circuit
between the Brown wire and Blue/green wire.
• If there
is
no
continuity, replace the ECM with a
known good one and recheck.
SYSTEM
[1]
A20
(White/blue)
[1]
B14
(Blue/green)
B20
(Brown)
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