• | 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. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
MIL Voltage Supply | P0650 | P0650 | -- | -- |
MIL Control | P0650/MIL ON | P0650 | P0650 | -- |
Ignition voltage is supplied directly to the malfunction indicator lamp (MIL). The engine control module (ECM) turns the MIL ON by grounding the MIL control circuit. There should be a steady MIL with the ignition ON and the engine OFF.
• | The engine is operating. |
• | Remote vehicle start, if equipped, is not active. |
• | The ignition voltage is between 11-18 volts. |
• | The DTCs runs continuously once the above conditions are met. |
The ECM detects that the commanded state of the driver and the actual state of the control circuit do not match for 5 seconds.
DTC P0650 is a Type B DTC.
DTC P0650 is a Type B DTC.
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
• | MIL Ckt Short Gnd Test Status |
• | MIL Ckt Open Test Status |
• | MIL Ckt Short Volts Test Status |
• | Each parameter should display OK or Not Run. |
⇒ | If the MIL illuminates, test the MIL control circuit terminal 1-X1 for a short to ground. If the circuit test normal, replace the bulb/IPC. |
⇒ | If the MIL does not illuminate, test the MIL control circuit for a short to voltage or an open/high resistance. If the circuit test normal, replace the bulb/IPC. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for ECM replacement, setup, and programming |