DTC P0658 or P0659
Diagnostic Instructions
DTC Descriptors
DTC P0658: Actuator High Control Circuit
Group 1 Low Voltage
DTC P0659: Actuator High Control Circuit
Group 1 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 valve assembly
which has no serviceable components. The high side driver 1
provides power to 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
• |
High side driver 1 is enabled. |
P0659
• |
Ignition transitions from OFF to ON. |
Conditions for Setting the DTC
P0658
The TCM detects an internal open or short-circuit to ground in
the high side driver 1 circuit for 1 second.
P0659
The TCM detects an internal short-circuit to voltage on the high
side driver 1 circuit for 1 second.
Action Taken When the DTC Sets
P0658
• |
DTC P0658 is a Type A DTC. |
• |
The TCM turns the high side driver OFF. |
• |
The TCM commands all solenoids OFF. |
• |
The TCM commands the TCC OFF. |
• |
The TCM commands maximum line pressure. |
• |
The TCM freezes transmission adaptive
functions. |
• |
The TCM inhibits the Tap Up/Tap Down
function. |
• |
The TCM inhibits manual shifting of forward
gears. |
• |
The TCM defaults the transmission to 5th gear and
reverse. |
• |
The TCM enables torque management. |
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. |
Diagnostic Aids
When DTC P0658 sets, the line pressure control solenoid,
and pressure control solenoids 2 and 3, will default to maximum
pressure. This results in maximum line pressure to the
3-5 reverse clutch, and low/reverse clutch, when reverse is
selected, and the 4-5-6 clutch, when forward is selected.
Reference Information
Schematic Reference
Automatic Transmission Controls Schematics
Connector End View Reference
Description and Operation
Electrical Information Reference
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
Special Tools
DT-48616-10 Adapter Harness
For equivalent regional tools, refer to
Special Tools .
Circuit/System Verification
- Ignition ON, verify with a scan tool the High Side
Driver 1 parameter displays ON.
- 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 High Voltage Test
Status |
• |
High Side Driver 1 Circuit Open Test
Status |
• |
High Side Driver 1 Circuit Low Voltage Test
Status |
- After performing the above steps, verify that the DTC
does not reset by operating the vehicle within the Conditions for
Running the DTC. You may also operate the vehicle within the
conditions you observe from the Freeze Frame/Failure Records data.
If the vehicle passes the Circuit/System Verification procedure,
then STOP. Do not perform the Circuit/System Testing or Component
Testing as this may result in an unnecessary part replacement.
Refer to
Testing for Intermittent Conditions and Poor Connections .
Circuit/System Testing
Note: You must perform the
Circuit/System Verification first.
- Ignition OFF, remove the Q8 control solenoid valve
assembly. Refer to
Control Solenoid Valve and Transmission Control Module Assembly
Replacement .
- Perform the
Control Solenoid Valve and Transmission Control Module Assembly
Inspection .
- Place the Q8 control solenoid valve assembly on a
clean work surface near the transmission assembly.
- Connect the DT-48616-10 harness between the
vehicle wire harness X1 14-way transmission electrical
connector, and the Q8 control solenoid valve assembly electrical
connector.
- Ignition ON, verify with a scan tool the following
test status parameters display OK.
• |
High Side Driver 1 Circuit High Voltage Test
Status |
• |
High Side Driver 1 Circuit Open Test
Status |
• |
High Side Driver 1 Circuit Low Voltage Test
Status |
⇒ |
If any test status parameter displays Fault or
Malfunction, replace the Q8 control solenoid valve assembly. |
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
|