MPI <4G6> -
Troubleshooting
13A-44
Cord No. P1610 Immobilizer system Probable cause
Range of Check
D
Ignition switch: ON
Set Conditions
D
Improper communication between the engine-ECU <M/T> or engine-A/T-ECU
<A/T> and the immobilizer-ECU
D
Open or short circuit, or loose connector contact
D
Malfunction of the immobilizer-ECU
D
Malfunction of the engine-ECU <M/T>
D
Malfunction
of
the
engine-A/T
-ECU
<A/T>
NOTE
(1) If the registered ignition keys are close each other when starting the engine, radio interference may
cause this code to be displayed.
(2) This code may be displayed when registering the key ID code.
NG
Replace the engine-ECU <M/T> or
Check the trouble symptoms.
NG
Replace the immobilizer-ECU.
OK
Check the trouble symptoms.
OK
Check the harness wire between the
immobilizer-ECU and the engine-ECU
<M/T>
or
engine-A/T
-ECU
<A/T>.
NG
Replace
Check the following connectors:
C-38
<M/T>,
C-174
<A/T>,
C-81,
C-173
NG
Repair
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