Description of Flash Code 15
Flash Code 15 indicates that the Coolant Temperature Sensor (CTS), or Oil Temperature Sensor (OTS), see Figure "Coolant Temperature Sensor (Oil Temperature Sensor similar)" , input to the ECM has dropped below 5% (normally < 0.25 volts) of the sensor supply voltage.
This diagnostic condition is typically:
- Sensor signal is shorted to the sensor return circuit or to ground
|DDEC III/IV Single ECM Troubleshooting Guide - 6SE497|
|Generated on 10-13-2008|