P1335
COMPONENT DESCRIPTION
The crankshaft position sensor (REF) is located on the oil pan (upper) facing the crankshaft pulley. It detects the TDC (Top Dead Center) signal (120 ° signal).
The sensor consists of a permanent magnet, core and coil.
When engine is running, the gap between the sensor and the crankshaft pulley will periodically change. Permeability near the sensor also changes.
Due to the permeability change, the magnetic flux near the core is changed. Therefore, the voltage signal generated in the coil is changed.
The ECM receives the voltage signal and detects the TDC signal (120 ° signal).
Consult-II Reference Value In Data Monitor Mode:
ON BOARD DIAGNOSIS LOGIC
Malfunction is detected when
(Malfunction A) 120 ° signal is not entered to ECM for the first few seconds during engine cranking,
(Malfunction B) 120 ° signal is not entered to ECM during engine running,
(Malfunction C) 120 ° signal cycle excessively changes during engine running.
FAIL-SAFE MODE
When the ECM enters the fail-safe mode, the MIL illuminates.
Possible Cause
- Harness or connectors
(The crankshaft position sensor (REF) circuit is open or shorted.)
- Crankshaft position sensor (REF)
- Starter motor
- Starting system circuit
- Dead (Weak) battery
DTC Confirmation Procedure
NOTE:
- Perform "PROCEDURE FOR MALFUNCTION A" first. If 1st trip DTC cannot be confirmed, perform "PROCEDURE FOR MALFUNCTION B AND C".
- If "DTC Confirmation Procedure" has been previously conducted, always turn ignition switch "OFF" and wait at least 10 seconds before conducting the next test.
TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 10.5 V at idle.
PROCEDURE FOR MALFUNCTION A
WITH CONSULT-II
1. Turn ignition switch "ON".
2. Select "DATA MONITOR" mode with CONSULT-II.
3. Crank engine for at least 2 seconds.
4. If 1st trip DTC is detected, go to "Diagnostic Procedure" below.
WITH GST
Follow the procedure "With CONSULT-II" above.
PROCEDURE FOR MALFUNCTION B AND C
WITH CONSULT-II
1. Turn ignition switch "ON".
2. Select "DATA MONITOR" mode with CONSULT-II.
3. Start engine and run it for at least 2 seconds at idle speed.
4. If 1st trip DTC is detected, go to "Diagnostic Procedure" below.
WITH GST
Follow the procedure "With CONSULT-II" above.
EC-REF-01:
EC-REF-01 - Connector View:
ECM Terminals And Reference Value:
WIRING DIAGRAM
DIAGNOSTIC PROCEDURE
Diagnostic Procedure Steps 1 - 3:
Diagnostic Procedure Steps 4 - 7:
