Diagnostic trouble code (DTC) information

Condition 

The control module calculates the number of teeth on the flywheel using the engine speed (RPM) sensor. Diagnostic trouble code (DTC) ECM-5200 is stored if the control module detects at least one tooth too many (Signal too high) or one tooth too few (Signal too low).

The control module detects the position of the flywheel for top dead center (TDC) using the signal from the speed sensor. Diagnostic trouble code (DTC) ECM-5200 is stored if the control module is unable to detect top dead center (TDC) on the flywheel (Faulty signal) or if the reference position for TDC is missing sporadically (Signal missing).

Substitute Value 

• The control module uses the signal from the camshaft position (CMP) sensor if the camshaft position (CMP) sensor has been adapted
• Variable valve timing control is blocked
• Engine speed (RPM) is limited.

Possible Source 

Signal too high: 

• Signal interference.

Signal too low: 

• Incorrectly installed engine speed (RPM) sensor
• Defective flywheel or ring gear.

Faulty signal: 

• Signal interference
• Contact resistance in the terminals
• Incorrectly installed engine speed (RPM) sensor
• Intermittent faults in the wiring for the engine speed (RPM) sensor.

Signal missing: 

• Signal interference
• Contact resistance and oxidation.

Fault symptom[s] 

• Engine difficult to start
• Poor driveability.