Circuit Description
Output driver modules (ODMs) are used by the PCM to turn on many of the current-driven devices that are needed to control various engine and Transaxle functions. Each ODM is capable of controlling up to 7 separate outputs by applying ground to the device which the PCM is commanding ON. Unlike the quad driver modules (QDMs) used in prior model years, ODMs have the capability of diagnosing each output circuit individually. DTC P0650 set indicates an improper voltage level on the output circuit that controls the malfunction iIndicator lamp (MIL).
Conditions for Running the DTC
Ignition is ON.
Conditions for Setting the DTC
| • | An improper voltage level has been detected on ODM D output 1 (the MIL control circuit). |
| • | Above conditions for at least 30 seconds. |
Action Taken When the DTC Sets
| • | The PCM will illuminate the malfunction indicator lamp (MIL) during the second consecutive trip in which the diagnostic test has been run and failed. |
| • | The PCM will store conditions which were present when the DTC set as Freeze Frame/Failure Records data. |
Conditions for Clearing the MIL/DTC
| • | The PCM will turn OFF the malfunction indicator lamp (MIL) during the third consecutive trip in which the diagnostic has run and passed. |
| • | The history DTC will clear after 40 consecutive warm-up cycles have occurred without a malfunction. |
| • | The DTC can be cleared by using a scan tool. |
Diagnostic Aids
Check for the following conditions:
| • | Poor connection at the PCM. |
| Inspect harness connectors for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, and poor terminal to wire connection. |
| • | Damaged harness. |
| Inspect the wiring harness for damage. If the harness appears to be OK, disconnect the PCM, turn the ignition ON and observe a digital multimeter connected between the MIL control circuit and ground at the PCM harness connector while moving connectors and wiring harnesses related to the MIL. A change in voltage will indicate the location of the malfunction. |
Reviewing the Failure Records vehicle mileage since the diagnostic test last failed may help determine how often the condition that caused the DTC to be set occurs. This may assist in diagnosing the condition.
Test Description
Number(s) below refer to the step number(s) on the Diagnostic Table.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Powertrain On-Board Diagnostic (OBD) System Check? | -- | ||
2 |
Important: If the MIL fuse is open, locate and repair a short to ground in the MIL ignition supply circuit or a shorted cluster. Inspect the MIL fuse and replace as necessary. Was the fuse open? | -- | ||
3 |
Important: If the jumper fuse opens, locate and repair a short to voltage in the MIL control circuit or a shorted cluster. Is the MIL illuminated? | -- | ||
4 | Leaving the ignition ON, remove the jumper. Is the MIL illuminated? | -- | ||
5 |
Did you find and correct the condition? | -- | ||
6 | Test the MIL ignition supply circuit for an open and repair as necessary. Did you find and correct the condition? | -- | ||
7 |
Did you find and repair the condition? | -- | ||
8 | Inspect the cluster harness connector for faulty connections and repair as necessary. Refer to Wiring Repairs in Wiring Systems. Did you find and repair the condition? | -- | ||
9 | Inspect the PCM and the PCM harness connector for faulty connections and repair as necessary. Refer to Wiring Repairs in Wiring Systems. Did you find and correct the connection? | -- | ||
10 | Repair or replace the cluster. Refer to Instrument Cluster Replacement in instrument panel, gauges and console. Did you complete the repair or replacement? | -- | -- | |
|
Important:: The replacement PCM must be programmed. Refer to Powertrain Control Module Replacement/Programming . Replace the PCM. Did you complete the replacement? | -- | -- | ||
12 |
Does the DTC reset? | -- | System OK |
