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DTC P0237, P0238 TC BOOST SENSOR EC-493 [YD (WITHOUT EURO-OBD)] C D E F G H I J K L M A EC Diagnostic Procedure EBS0156V 1. CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Loosen and retighten engine ground screws. Refer to . OK or NG OK >> GO TO 2. NG >> Repair or replace ground connections. 2. CHECK TURBOCHARGER BOOST SENSOR POWER SUPPLY CIRCUIT 1. Disconnect turbocharge boost sensor harness connector. 2. Turn ignition switch ON. 3. Check voltage between turbocharge boost sensor terminal 1 OK or NG OK >> GO TO 3. NG >> Repair open circuit or short to ground or short to power in harness or connectors. 3. CHECK TURBOCHAGER BOOST SENSOR GROUND CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check harness continuity between turbocharger boost sensor terminal 3 and ECM terminal 71. 4. Also check harness for short to ground and short to power. OK or NG OK >> GO TO 4. NG >> Repair open circuit or short to ground or short to power in harness or connectors. MBIB0915E MBIB1025E Voltage: Approximately 5.3V MBIB0072E Continuity should exist. |