Impossible to Start Engine/Santa Fe

FIELD CASE STUDY
MODEL : Santa Fe 2003
Displacement : 2000 cc
Fuel : Diesel.
subject : Impossible to start the engine – CMP sensor Camshaft Position Sesor
1.) Condition
a) Impossible to start the engine in warm condition
( Engine coolant te mperature is higher than 65 degrees celsius )
b)Starting is possible in cold condition.
c)Impossible to restart the engine in warm condition.
2.) Cause
a) Camshaft position sensor malfunction.
3.) Diagnosis
1) scan tool check.
- Diagnostic Trouble code
P0403 EGR solenoid – malfunction.
P0340 CMP sensor malfunction.
2) Inspect the condition of suplied sensor signal, ground line, and CMP sensor power source
after disconnecting the connector using multimeter.
* Standard value : Power – 12 volt
Ground line – o volt
Signal line – 5 volt
3)Check the wave form of the CKP sensor – trouble not founding
4) Check the waveform of the CMP sensor Abnormal condition.
Word of reference:
- CMP –camshaft position sensor
-CKP - crankshaft position sensor
-ECM – Engine control module
- VGT – Variable Geometry Turbocharger
- EGR – Exhaust gas recirculation
4) Repair guide
1) replace the camshaft position sensor.
2) ECM with VGT diesel engine prevents engine from starting when the CKP or CMP is abnormal.
(cold condition – normal starting , Warm condition – Impossible to starting)

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