DTC P06AC, P06AD, or P06AE
Diagnostic Instructions
DTC Descriptors
DTC P06AC: Transmission Control Module Power Up
Temperature Sensor Performance
DTC P06AD: Transmission Control Module Power Up
Temperature Sensor Circuit Low Voltage
DTC P06AE: Transmission Control Module Power Up
Temperature Sensor Circuit High Voltage
Diagnostic Fault Information
Circuit
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Short to Ground
|
Open/High Resistance
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Short to Voltage
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Signal Performance
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TCM Temperature Sensor
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P06AD
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P06AE
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P06AE
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P06AC
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Circuit/System Description
The transmission control module (TCM) power up temperature
sensor is located inside of the control solenoid valve assembly
which has no serviceable components. The TCM power up temperature
sensor provides the temperature of the TCM when the TCM power is
on. This temperature reading is used in various shifting and
diagnostic routines in the TCM software. This fault is handled
inside the TCM and no external circuits are involved.
Conditions for Running the DTC
P06AC
• |
DTC P0101, P0102, P0103, P0106, P0107, P0108,
P0171, P0172, P0174, P0175, P0201, P0202, P0203, P0204, P0205,
P0206, P0207, P0208, P0300, P0301, P0302, P0303, P0304, P0305,
P0306, P0307, P0308, P0401, P042E, P0658, P0668, P0669, P06AC,
P06AD, P06AE, P0712, P0713, P0716, P0717, P0722, P0723, P0962,
P0963, P0966, P0967, P0970, P0971, P215C, P2720, P2721, P2729, or
P2730 is not set. |
• |
The throttle position signal is valid. |
• |
The engine speed is 400 RPM or greater for
5 seconds. |
• |
The ignition voltage is 9.0 volts or
greater. |
• |
The engine torque signal is valid. |
P06AD
• |
DTC P06AD, P0716, P0717, P0722, or P0723 is not
set. |
• |
The engine speed is 400 RPM or greater for
5 seconds. |
• |
The ignition voltage is 9.0 volts or
greater. |
P06AE
• |
The engine speed is 400 RPM or greater for
5 seconds. |
• |
The ignition voltage is 9.0 volts or
greater. |
Conditions for Setting the DTC
P06AC
• |
The difference between the transmission fluid
temperature (TFT) and TCM power up temperature is greater than
20-50°C (36-90°F), depending on the average of the
TFT, TCM substrate, and TCM power up temperatures. |
• |
The difference between the TCM power up
temperature and TCM substrate temperature is greater than
8-10°C (14-18°F) depending on the average of the TFT, TCM
substrate, and TCM power up temperatures. |
• |
The above conditions have to be met for
5 minutes within a 6 minute period. |
P06AD
The TCM power up temperature is -254°C (-425°F) or less
for 1 minute.
P06AE
The TCM power up temperature is 254°C (489°F) or greater
for 1 minute.
Action Taken When the DTC Sets
• |
DTCs P06AC, P06AD, and P06AE are
Type B DTCs. |
• |
The TCM defaults the TCM power up temperature to
the TCM substrate temperature. |
Conditions for Clearing the DTC
DTCs P06AC, P06AD, and P06AE are Type B DTCs.
Diagnostic Aids
During a road test, the TCM Power-Up temperature should steadily
increase to a normal operating temperature, and then stabilise.
Reference Information
Schematic Reference
Automatic Transmission Controls Schematics
Connector End View Reference
Electrical Information Reference
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 Verification
- Operate the vehicle at 64 km/h (40 mph) for
10 minutes.
- 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 that you observed from the Freeze Frame/Failure Records
data. If the vehicle passes the Circuit/System Verification
procedure, refer to
Testing for Intermittent Conditions and Poor Connections .
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
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