DTC P2530: Ignition Switch Run Position Circuit: Notes
DTC detecting condition:
Immediately at fault recognition
Trouble symptom:
Improper idling
CAUTION:
- After servicing or replacing faulty parts, perform Clear Memory Mode Ref. to ENGINE (DIAGNOSTICS) (H6DO)>CLEAR MEMORY MODE>OPERATION ., and inspection mode Ref. to ENGINE (DIAGNOSTICS) (H6DO)>INSPECTION MODE>PROCEDURE .
- Use the check board when measuring the ECM terminal voltage and resistance.
Wiring diagram:
Engine Electrical System Ref. to WIRING SYSTEM>ENGINE ELECTRICAL SYSTEM>WIRING DIAGRAM .
- CHECK ECM CONNECTOR
.
Check the connecting condition of ECM connector.
Is the ECM connector correctly connected?
Yes: Go to 2 .
No: Connect the ECM connector correctly.
- CHECK INPUT VOLTAGE OF ECM
.
- Turn the ignition switch to ON.
- Measure the voltage between ECM connector and engine ground while wiggling the harness between ECM connector and F/B connector.
Connector & terminal
(B134) No. 2 (+) - Engine ground (-):
Is the voltage 8 V or more all the time?
Yes: Even if DTC is detected, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.
NOTE: In this case, the following items may be the cause of fault.- Open circuit or short circuit to ground in harness between ECM
- connector and F/B connector
- Poor contact of fuse (F/B No. 5)
- Poor contact of IG2 relay connector
- Poor contact of IG2 relay
No: Repair the harness and connector.
NOTE: In this case, repair the following item:- Open circuit or short circuit to ground in harness between ECM connector and F/B connector
- Poor contact of fuse (F/B No. 5)
- Poor contact of IG2 relay connector
- Poor contact of IG2 relay