Troubleshooting

172 RENR2696-01
Troubleshooting Section
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Illustration 85
Schematic for engine temperature sensors
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Illustration 86
Engine coolant temperature sensor and intake manifold air temp erature sensor
Test Step 1. Verify All Active Diagnostic
Codes.
A. Connect the electronic service tool to the data link
connector.
B. Turn the keyswitch to the ON position.
Note: Wait at least 15 seconds for activation of the
diagnostic codes.
C. Use the electronic service tool in order to verify if
any of the following diagnostic codes are active:
•
105-03 Intake Manifold Temperature Sensor
Open Circuit or Shorted High
•
105-04 Intake Manifold Temperature Sensor
Shorted Low
•
110-03 Engine Coolant Temperature Sensor
Open Circuit or Shorted High
•
110-04 Engine Coolant Temperature Sensor
Shorted Low