Service manual

FUEL INJECTION SYSTEM
FI ifl
Fault code No. 12 Symptom No normal signals are received from the crankshaft position sensor.
Used diagnostic code No. --
Order
Inspection operation item and
probable cause
Operation item and countermeasure
Reinstatement
method
1
2
3
4
Installed condition of sensor.
Check the installed area for looseness or
pinching.
Reinstated by crank-
ing the engine.
1
2
3
4
Connected condition of con-
nector.
Inspect the coupler for any
pins that may have pulled
out.
Check that the coupler is
connected securely.
NOTE:
Set the main switch to OFF
before connecting or discon-
necting the connector.
If there is a malfunction, repair it and connect
it securely.
Crankshaft position sensor coupler
Main wiring harness ECU coupler
Reinstated by crank-
ing the engine.
1
2
3
4
Open or short circuit in wiring
harness.
Repair or replace if there is an open or short
circuit between the main wiring harnesses.
Between sensor coupler and ECU coupler.
white/red
black/blue
Reinstated by crank-
ing the engine.
1
2
3
4 Defective crankshaft position
sensor.
Replace if defective.
Refer to “IGNITION SYSTEM” in chapter 8.
Reinstated by crank-
ing the engine.
7-13