Test Description
The numbers below refer to the step numbers in the diagnostic table.
- 3: The cooling system could be causing this DTC to set. For example, restricted air flow through the radiator, low coolant level, or the incorrect type of coolant.
- 6: This step tests for excessive resistance in the ECT circuit.
- 7: This step isolates the condition. If the temperature changes, test for a condition in the low reference circuit. If the temperature remains the same, test the signal circuit for a condition.
DTC P0217
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Engine Controls Schematics Connector End View Reference: Engine Controls Connector End Views |
||||
| 1 | Did you perform the Diagnostic System Check - Engine Controls? | - | Go to Step 2 | Go to Diagnostic System Check - Engine Controls |
| 2 |
IMPORTANT:
If DTC P0117 is also set, refer to DTC P0117
. Is the engine cooling system low on coolant? |
- | Go to Loss of Coolant | Go to Step 3 |
| 3 | Is the customer's concern that the engine is operating at a higher temperature then normal or that the engine is overheating? | - | Go to Symptoms - Engine Cooling | Go to Step 4 |
| 4 |
IMPORTANT:
Return to this diagnostic procedure after you complete the thermostat diagnosis. Test for the correct operation of the thermostat. Refer to Thermostat Diagnosis
.Did you find and correct the condition? |
- | Go to Step 14 | Go to Step 5 |
| 5 |
IMPORTANT:
Return to this diagnostic procedure after you complete the engine cooling fan diagnosis. Test for the correct operation of the engine cooling fans. Refer to Cooling Fan Circuit Diagnosis (Single Fan)
or Cooling Fan Circuit Diagnosis (Dual Fan)
.Did you find and correct the condition? |
- | Go to Step 14 | Go to Step 6 |
| 6 |
|
214°C (417°F) | Go to Step 10 | Go to Step 7 |
| 7 |
|
214°C (417°F) | Go to Step 8 | Go to Step 9 |
| 8 | Test the low reference circuit of the ECT sensor for high resistance. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 14 | Go to Step 11 |
| 9 | Test the signal circuit of the ECT sensor for high resistance. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 14 | Go to Step 11 |
| 10 | Test for shorted terminals and poor connections at the ECT sensor. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 14 | Go to Step 12 |
| 11 | Test for shorted terminals and poor connections at the ECM. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 14 | Go to Step 13 |
| 12 | Replace the ECT sensor. Refer to Engine Coolant Temperature (ECT) Sensor Replacement
. Did you complete the replacement? |
- | Go to Step 14 | - |
| 13 | Replace the ECM. Refer to Engine Control Module (ECM) Replacement
. Did you complete the replacement? |
- | Go to Step 14 | - |
| 14 |
|
- | Go to Step 2 | Go to Step 15 |
| 15 | Observe the Capture Info with a scan tool. Are there any DTCs that have not been diagnosed? |
- | Go to Diagnostic Trouble Code (DTC) List | System OK |