Perkins 1104E Series Troubleshooting Manual page 165

RENR2696-01
The engine will start and the engine will run when
only one sensor signal is present from either of the
sensors. The loss of the signal from both of the
sensors during engine operation will result in the
termination of injection and the shutting down of the
engine by the ECM. The loss of the signal from both
of the sensors during start-up will prevent the engine
from starting.
Illustration 77
The schematic for the speed/timing sensor
Test Step 1. Inspect the Electrical
Connectors and Cables
A. Turn the keyswitch to the OFF position.
B. Inspect the electrical connectors for damage.
Refer to Troubleshooting, "Electrical Connectors
- Inspect".
Expected Result:
The electrical system is free from damage and faults.
Results:
•
OK – There is no damage or faults. Proceed to
Test Step 2.
• Not OK – There is damage to the electrical system
components.
Repair: Repair the cables and/or the connectors
or replace the cables and/or the connectors.
Ensure that all seals are in place and ensure that
the connectors are correctly installed.
Verify that the repair has eliminated the fault.
STOP.
•
Fault not eliminated – Proceed to Test Step 2.
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Troubleshooting Section
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