FUEL INJECTION SYSTEM
8-25
4 Connection of sub wire har-
ness coupler.
Check the locking condition
of the coupler.
Disconnect the coupler, and
check the pins (for bent or
broken terminals and locking
condition of the pins).
Improperly connected
Connect the coupler secure-
ly, or repair/replace the sub-
wire harness.
After starting the engine, idle
this and wait about 5 sec-
onds.
Fault code No. is not dis-
played Repair is finished.
Fault code No. is displayed
Go to next order.
5 Wire harness continuity. Open or short circuit Re-
place the wire harness.
Between injector coupler and
ECU coupler.
red/black–red/black
Between injector coupler and
rectifier/regulator coupler
red/red
After starting the engine, idle
this and wait about 5 sec-
onds.
Fault code No. is not dis-
played Repair is finished.
Fault code No. is displayed
Go to next order.
6 Faulty ECU Replace the ECU.
Fault code 41
Symptom ECU: built-in lean angle sensor malfunction
Fail-safe system Unable to start engine
Able to drive vehicle
Diagnostic code No. 08
Diagnostic tool display Displays the lean angle sensor output voltage.
• 1.0 V (upright)
• 4.0 V (overturned)
Procedure Remove the ECU, and incline it 45° or more.
Or-
der
Probable cause of malfunc-
tion and check
Maintenance job Reinstatement method
1 Faulty ECU Replace the ECU.
Fault code 39
Symptom Injector: open or short circuit detected.
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