Diagnostic Instructions
DTC Descriptors
DTC P0658: Pressure Control (PC)/Shift Lock Solenoid Control Circuit Low Voltage
DTC P0659: Pressure Control (PC)/Shift Lock Solenoid Control Circuit High Voltage
Diagnostic Fault Information
Circuit
| Short to Ground
| Open/High Resistance
| Short to Voltage
|
High Side Driver 1
| P0658
| P0658
| P0659
|
Circuit/System Description
The transmission control module (TCM) high side driver 1 is located inside the control solenoid (w/body and TCM) valve assembly. The control solenoid (w/body and TCM) valve assembly has no seviceable parts. The high side driver 1
provides the voltage for the TCM 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
| • | The engine speed is greater than 500 RPM for 5 seconds. |
| • | Ignition voltage is between 9.0 volts and 19.0 volts. |
| • | High side driver 1 is enabled. |
| • | DTC P0658 has not failed this ignition cycle. |
P0659
DTC P0659 has not failed this ignition cycle.
Conditions for Setting the DTC
P0658
The TCM detects an internal open or short to ground in the high side driver 1 for 0.3 seconds or greater.
P0659
The TCM detects an internal short to voltage on the high side driver 1 circuit for 0.3 seconds or greater.
Action Taken When the DTC Sets
P0658
| • | DTC P0658 is a Type A DTC. |
| • | The TCM turns OFF all high side drivers. |
| • | The TCM turns OFF all solenoids. |
| • | The TCM commands the TCC OFF. |
| • | The TCM commands maximum line pressure. |
| • | the TCM freezes transmission adaptive functions. |
| • | The TCM allows the vehicle to operate in transmission protection mode. |
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
Schematic Reference
Automatic Transmission Controls Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Testing
- Clear the DTC and operate the vehicle under the conditions for running and setting the DTC.
- Observe the High Side Driver CKT Status parameter. The parameter should display OK.
| ⇒ | If the parameter displays Open, Short to Ground, Short to Voltage, or the DTC resets, replace the control solenoid (w/body and TCM) valve assembly. |
Repair Instructions
Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.
| • | Refer to
Control Module References
for control solenoid (w/body and TCM) valve assembly replacement, setup, and programming. |
