Perkins 1106D Troubleshooting Manual page 159

SENR9982
Illustration 56
Schematic for engine temperature sensors
Illustration 57
Engine coolant temperature sensor and intake manifold air
temperature sensor
(1) Signal (SIG)
(2) Ground (GND)
Test Step 1. Verify All Active Diagnostic
Codes.
A. Connect the Perkins Electronic Service Tool (EST)
to the data link connector.
B. Turn the keyswitch to the ON position.
Note: Wait at least 30 seconds for activation of the
diagnostic codes.
C. Use the Perkins EST in order to verify if any of the
following diagnostic codes are active or recently
logged:
•
110-03 Engine Coolant Temperature open/short
to +batt
•
110-04 Engine Coolant Temperature short to
ground
•
172-03 Intake Manifold Air Temperature
open/short to +batt
• 172-04 Intake Manifold Air Temperature short
to ground
Expected Result:
One or more of the preceding diagnostic codes are
active or recently logged.
Results:
•
Yes – Proceed to Test Step 2.
• No – STOP.
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Troubleshooting Section
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