4-15TRBLSHTG Troubleshooting117118Electronic throttlesystemmalfunctionThrottle valvemalfunctionC/E High engine idle speedThrottle valve does not operateEngine speedis set atapproximately1500 r/minCheck the ETV circuit. 5-33A-3Check the fuse. 5-3A-3Check the ETV motor relay. 5-32Check the throttle body. 6-28119 Electronic throttlesystemmalfunctionThrottle valvemalfunctionC/E High engine idle speedThrottle valve does not operateEngine speedis set atapproximately1500 r/minCheck the ETV circuit.5-33A-3121 Electronic throttlesystemmalfunctionThrottle valvemalfunction(engine ECMinternal circuitmalfunction)C/E High engine idle speedThrottle valve does not operateEngine speedis set atapproximately1500 r/minReplace the engine ECM.7-35122 Electronic throttlesystemmalfunctionThrottle valvemalfunctionC/E High engine idle speedThrottle valve does not operateEngine speedis set atapproximately1500 r/minCheck the throttle body. 6-28Replace the throttle body. (ETVmotor mulfunction) 6-26123 Electronic throttlesystemmalfunctionThrottle valvemalfunctionC/E High engine idle speedThrottle valve does not operateEngine speedis set atapproximately1500 r/minCheck the ETV circuit. 5-33A-3Check the fuse. 5-3A-3Check the ETV motor relay. 5-32124125Throttle positionsensormalfunctionOut ofspecificationC/E High engine idle speedDegraded acceleration performanceDeclining maximum engine speed —Measure the TPS output voltageusing the YDIS. 5-31Check the throttle valve openingangle using the YDIS. 5-31Check the ETV circuit. 5-33A-3Troublecode Item Condition LAN gaugedisplay Symptom Remarks Checking steps See page
