DTC P1580: Starter Relay Diagnosis Circuit: Notes
DTC detecting condition:
Immediately at fault recognition
Trouble symptom:
Auto Start Stop does not operate.
CAUTION:
Use the check board when measuring the ECM terminal voltage and resistance. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>GENERAL DESCRIPTION>PREPARATION TOOL>HOW TO USE CHECK BOARD
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NOTE:
After the faulty parts are repaired or replaced, perform the final check in Basic Diagnostic Procedure. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE
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Wiring diagram:
Engine Electrical System Ref. to WIRING SYSTEM>ENGINE ELECTRICAL SYSTEM .
- Model without push button start
- Model with push button start
- CHECK HARNESS BETWEEN ECM CONNECTOR AND M/B (STARTER RELAY) (OPEN)
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- Turn the ignition switch to OFF.
- Remove the starter relay.
- Disconnect the connector from ECM.
- Measure the resistance between ECM connector and M/B (starter relay).
Connector & terminal
(B62) No. 45 - No. 1:
Is the resistance less than 1 Ω?
Yes: Check for poor contact of ECM connector. Replace the ECM if no fault is found. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>ENGINE CONTROL MODULE (ECM) .
No: Repair the open circuit of harness between ECM connector and M/B (starter relay).