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DI10-165 CHANGED BY EFFECTIVE DATE AFFECTED VIN DIAGNOSIS DI ENG SM - 2004.4 Trouble Code and Symptom Diagnosis Procedures 1. Diagnosis Procedures(Boost Pressure) VGT Operation Fault VGT Operation Fault Trouble Code Symptom P1235 Unable Cruise Control Location demand=change the boost control to O.L. mode at f (boost demand, engine cycling speed) YES Read DTC Boost Pressure Problem? NO Check air line malfunction: * VGT/Turbo. * Air filter. * Vacuum line. * Vacuum pump. * Solenoid valve open. * Vane condition. * Air inlet valve function Repair completed Refer to Diagnosis Tree “Check sensor(1)” |