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DTC P0658 or P0659

DTC P0658 or P0659

Diagnostic Instructions


• 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.


DTC Descriptors

DTC P0658

Actuator High Control Circuit Group 1 Low Voltage

DTC P0659

Actuator High Control Circuit Group 1 High Voltage

Circuit/System Description

The transmission control module (TCM) high side driver 1 is located inside of the control solenoid valve assembly, which has no serviceable components. The high side driver 1 provides power to the pressure control solenoids and shift solenoids. This fault is handled inside the TCM and no external circuits are involved.

Conditions for Running the DTC


P0658

• High side driver 1 is enabled.

• DTC P0658 is not set.


P0659

DTC P0659 is not set.

Conditions for Setting the DTC

P0658

The TCM detects an internal open or short to ground in the high side driver 1 circuit for 1 second.

P0659

During TCM power-up and prior to the high side driver being enabled, the TCM detects an internal short to voltage on the high side driver 1 circuit a total of 3 times out of 5 consecutive readings.

Action Taken When the DTC Sets


P0658

• DTC P0658 is a Type A DTC.

• The TCM turns the high side driver OFF.

• The TCM turns OFF all solenoids.

• The TCM commands maximum line pressure.

• The TCM freezes transmission adaptive functions.

• The TCM commands the torque converter clutch (TCC) OFF.

• The TCM inhibits Tap Up/Down function.

• The TCM inhibits manual shifting of forward gears.

• The TCM limits the transmission to Reverse and 5th gear operation.


P0659

DTC P0659 is a Type C DTC.

Conditions for Clearing the DTC


• DTC P0658 is a Type A DTC.

• DTC P0659 is a Type C DTC.


Reference Information

Connector End View Reference


• Component Connector End Views

• Inline Harness Connector End Views


Description and Operation

Transmission General Description

Electrical Information Reference


• Circuit Testing

• Connector Repairs

• Testing for Intermittent Conditions and Poor Connections

• Wiring Repairs


DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

Special Tools

DT-47825-20 Adapter Harness

For equivalent regional tools, refer to Special Tools .

Circuit/System Verification


1. Ignition ON, verify with a scan tool the High Side Driver 1 parameter displays Enabled.

2. Engine Running, gear selector lever in Park position. Verify with a scan tool the following test status parameters displays OK:

• High Side Driver 1 Circuit Low Voltage Test Status

• High Side Driver 1 Circuit Open Test Status

• High Side Driver 1 Circuit High Voltage Test Status

3. After you complete the steps described above, check the diagnostic trouble code is not reset by driving the vehicle according to the conditions for running diagnostic trouble codes (DTC). You can also drive the vehicle according to the conditions you see in Freeze Frame/ Failure records. If the vehicle passes the circuit/system verification procedure, then stop. Do not perform the circuit/system test or component test as this may result in unnecessary part replacement. Refer to Testing for Intermittent Conditions and Poor Connections .


Circuit/System Testing


1.
Note

You must perform the Circuit/System Verification first.


Remove control solenoid valve assembly Q8 with ignition OFF. See Replacing control solenoid valve assembly and transmission control module .

2. Perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection .

3. Place the Q8 control solenoid valve assembly on a clean work surface near the transmission assembly.

4. Connect the DT-47825-20 adapter harness between the vehicle wire harness X1 20-way transmission electrical connector, and the Q8 control solenoid valve assembly electrical connector.

5. Ignition ON, verify with a scan tool the following test status parameters display OK:

• High Side Driver 1 Circuit Low Voltage Test Status

• High Side Driver 1 Circuit Open Test Status

• High Side Driver 1 Circuit High Voltage Test Status

6. If any test status parameter displays Fault or Malfunction, replace the Q8 control solenoid valve assembly.


Repair Instructions

Note
• Perform the Resetting of the transmission's adaption after all transmission repairs.

• Before replacing the TCM, perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection .


Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for control solenoid valve assembly replacement, setup, and programming