• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
The engine control module (ECM) monitors the temperature of the engine coolant for engine control and as an enabling criteria for some diagnostics. The amount of air flow into an engine is proportional to the amount of heat an engine generates. The ECM monitors the amount of air flow into the engine to calculate engine coolant temperature (ECT). The ECM uses the calculated temperature to determine if the engine has warmed up to the thermostat regulating temperature. If the coolant temperature does not increase normally, does not reach the regulating temperature of the thermostat, or goes over the thermostat regulating temperature, diagnostics that use the ECT as enabling criteria may not run when expected.
• | DTCs P0031, P0032, P0107, P0108, P0110, P0111, P0112, P0113, P0116, P0117, P0118, P0122, P0123, P0125, P0313, P0132, P0133, P0134, P0135, P0217, P0300, P0313, P0324, P0340, P0444, P0445, P0496, P0502, P0506, P0507, P0562, P0563, P0606, P2110, P2610, and U0101 are not set. |
• | The engine has been OFF for more than 6 hours. |
OR |
The start-up engine coolant temperature (ECT) is less than 45°C (113°F). |
• | The engine is running. |
• | The engine has been at an idle state for 100-600 seconds. |
• | The ECT is greater than 50°C (122°F). |
• | The intake air temperature (IAT) is more than 35°C (95°F). |
• | The airflow into the engine is less than 45 g/s or the calculated airflow into the engine is less than 43 g/s. If the ECM detects that the airflow into the engine is more than 45 g/s or 43 g/s after the diagnostic runs for 10 seconds, the ECM will not report a pass or fail. |
• | This DTC runs once per ignition cycle once the above conditions are met. |
The ECM detects that the engine coolant temperature is greater than 110°C (230°F).
DTC P0217 is a Type B DTC.
DTC P0217 is a Type B DTC.
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
⇒ | If any of the DTCs are set, refer to DTC P0480 or P0481. |
⇒ | If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the ECM. |
⇒ | If greater than the specified range, test the signal circuit for a short to ground. If the circuit tests normal, replace the ECM. |
Important: If the signal circuit is shorted to voltage the ECT sensor may be damaged.
⇒ | If less than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the ECM. |
Important: A thermometer can be used to the used to test the sensor off the vehicle.
⇒ | If not within the specified range, replace the ECT sensor. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for ECM replacement, setup, and programming |