PRE-RELEASE
DTC P0658 or P0659
| DTC P0658 or P0659 |
| Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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| 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.
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DTC P0658 is not set.
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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
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DTC P0658 is a Type A DTC.
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The TCM turns the high side driver OFF.
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The TCM turns OFF all solenoids.
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The TCM commands maximum line pressure.
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The TCM freezes transmission adaptive functions.
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The TCM commands the torque converter clutch (TCC) OFF.
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The TCM inhibits Tap Up/Down function.
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The TCM inhibits manual shifting of forward gears.
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The TCM limits the transmission to Reverse and 5th gear operation.
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P0659
DTC P0659 is a Type C DTC.| Conditions for Clearing the DTC |
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DTC P0658 is a Type A DTC.
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DTC P0659 is a Type C DTC.
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| Reference Information |
Connector End View Reference
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Component Connector End Views
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Inline Harness Connector End Views
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Description and Operation
Transmission General Description
Electrical Information Reference
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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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.
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| 2. |
Engine Running, gear selector lever in Park position. Verify with a scan tool the following test status parameters displays OK:
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High Side Driver 1 Circuit Low Voltage Test Status
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High Side Driver 1 Circuit Open Test Status
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High Side Driver 1 Circuit High Voltage Test Status
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| 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
.
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| Circuit/System Testing |
| 1. |
Remove control solenoid valve assembly Q8 with ignition OFF. See Replacing control solenoid valve assembly and transmission control module . |
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| 2. |
Perform the
Control Solenoid Valve and Transmission Control Module Assembly Inspection
.
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| 3. |
Place the Q8 control solenoid valve assembly on a clean work surface near the transmission assembly.
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| 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.
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| 5. |
Ignition ON, verify with a scan tool the following test status parameters display OK:
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High Side Driver 1 Circuit Low Voltage Test Status
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High Side Driver 1 Circuit Open Test Status
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High Side Driver 1 Circuit High Voltage Test Status
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| 6. |
If any test status parameter displays Fault or Malfunction, replace the Q8 control solenoid valve assembly.
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| Repair Instructions |
| Note | ||
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Perform the
Resetting of the transmission's adaption
after all transmission repairs.
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Before replacing the TCM, perform the
Control Solenoid Valve and Transmission Control Module Assembly Inspection
.
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Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for control solenoid valve assembly replacement, setup, and programming
