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P1656 ENGINE RESTART BYPASS RELAY EC-1165 < DTC/CIRCUIT DIAGNOSIS > [R9M] C D E F G H I J K L M A EC N P O P1656 ENGINE RESTART BYPASS RELAY DTC Description INFOID:0000000010935869 DTC DETECTION LOGIC POSSIBLE CAUSE • Harness or connectors FAIL-SAFE STOP/START SYSTEM DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING If the other DTC Confirmation Procedure is performed right before this procedure, the ignition switch must be >> GO TO 2. 2. PERFORM DTC CONFIRMATION PROCEDURE With CONSULT 1. Start the engine and warm it up to normal operating temperature. 2. Press start/stop OFF switch and check that the switch indicator is ON. 3. Select “AUTO STOP START” in “ACTIVE TEST” mode of “ENGINE” using CONSULT. 4. Touch “START” and operate stop/start system. (engine stop.) 5. Touch “CANCEL” and restart the engine. 6. Repeat Step 3 and Step 4 twice. Without CONSULT 1. Activate the stop/start system. Stop the engine. Restart the engine. Refer to TEM : System Description (M/T models)" EC-856, "STOP/START SYSTEM : System (CVT models). 2. Repeat Step 1 four times. CAUTION: Always drive vehicle at a safe speed. Is DTC detected? YES >> Proceed to EC-1166, "Diagnosis Procedure" NO-1 >> To check malfunction symptom before repair: Refer to GI-44, "Intermittent Incident" NO-2 >> Confirmation after repair: INSPECTION END DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition P1656 ENGINE RESTART BYPASS RELAY At an engine restart by stop/start system, the voltage right after the starter Stop/start system operating condition in fail safe mode Idling or driving the vehicle Stop/start system operating Stop During cranking (Restart) — — Prohibit the stop/start system operation |