P16F7

DTC P16F7

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructionsprovides an overview of each diagnostic category.

DTC Descriptor
DTC P16F7
- Control Module Pressure Control Solenoid Command Incorrect

Circuit/System Description

This is an internal fault detection of the transmission control module. This fault is handled inside the transmission control module and no external circuits are involved. The transmission control module is part of the control solenoid valve assembly, and is not serviced separately.

Conditions for Running the DTC

* The control solenoid valve assembly runs the program to detect an internal fault when the key is ON or the engine is running.
* Ignition voltage is 8-18 V.

Conditions for Setting the DTC

The control solenoid valve assembly has detected an internal malfunction.

Action Taken When the DTC Sets

* DTC P16F7 is a Type A DTC.
* The transmission control module shifts to a default gear, shuts down, and turns OFF.

Conditions for Clearing the DTC

DTC P16F7 is a Type A DTC

Diagnostic Aids

* When attempting to set transmission control module internal DTCs, run the engine for at least 1 minute, and then shut the engine off for 30 seconds. Following this procedure will allow for a complete transmission control module shutdown. Program the transmission control module with the latest software version and retest the DTC to see if the DTC resets.
* This DTC can be falsely set by commanding pressure control solenoid valves 2 and 3 On with a scan tool. Do not attempt to diagnose if DTC P16F7 is set due to commanding pressure control solenoid valves 2 and 3 On with a scan tool.

Reference Information
Schematic Reference

Automatic Transmission Controls Schematics 2ML70 - Automatic Transmission
Connector End View Reference

Component Connector End Views Connector End Views By Name
Electrical Information Reference

* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference

Control Module References Programming and Relearningfor scan tool information.

Circuit/System Verification

Verify that DTC P16F7 is not set.

If the DTC is set, program the Q8 control solenoid valve assembly. If the DTC resets, replace the Q8 control solenoid valve assembly.

Component Testing

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

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.

Control Module References Programming and Relearningfor Control Solenoid Valve Assembly for replacement, programming and setup.