Perkins 1104E Series Troubleshooting Manual page 176

176
Troubleshooting Section
Expected Result:
A short circuit diagnostic code is active when the
jumper is installed. An open circuit diagnostic code is
active when the jumper is removed.
Results:
•
OK – The engine harness and the ECM are OK.
Repair: Perform the following repair:
1. Temporarily connect the suspect sensor.
2. If the diagnostic code remains active, replace
the sensor.
3. Verify that the repair eliminates the problem.
4. Clear all inactive diagnostic codes.
STOP.
•
Not OK – The open circuit diagnostic code remains
active with the jumper in place. The most probable
location for the open is in the sensor common
or the sensor signal wire in the engine harness
between the ECM and the sensor. Remove the
jumper. Proceed to Test Step 6.
RENR2696-01