FAILURE DIAGNOSIS1-136 TNV DI Service ManualMethod and Procedure of Failure DiagnosisAnalog Input Related FailuresRack position sensorRelated DTCWork flow*For details of the work, see after-mentioned "."For the operation of thediagnosis tool, see “Diagnosis tool Operation Manual” separately.DTC P1202/4 Rack Position Sensor Error (Low Voltage)P1203/3 Rack Position Sensor Error (High Voltage)017534-00EReplace theE-ECU.Replace thefuel injection pump.Replace theharness.OKOKOKNG NGNG1. Input voltage checkof the rack position sensor(harness + E-ECU)2. Check the harnesscontinuity.3. Execution ofdirective rack position control(use diagnosis tool)A. Check the currentfailure display.B. Check the detectedvalue to estimate thecause of failure.DTC in the failure history indication Check the failureconditions.Current failureexists.Initial diagnosis with the diagnosis toolFailure diagnosis flow[Check items]:Rack position sensor voltage (AD value) - "Signal Data (SD)"• SD=0 (0V) or equivalent Signal wire disconnected ?• SD=5000 (5.0V) or equivalent Sensor GND wire disconnected ?
