P0124-TPS/APP INTERMITTENT
For a complete Transmission wiring diagramRefer to Section 8W
Theory of Operation
Due to the integration of the Powertrain and Transmission Control Modulesthe New Generation Control Module III
will be referred as the Powertrain Control Module (PCM). The 4.7L V-8 Throttle Positioning Sensor (TPS) provides
the PCM with an input signal voltage that represents the throttle blade position of the throttle body. The TPS is
connected to the throttle blade shaft. As the position of the throttle blade changes, the output voltage of the TPS
changes.
The 5.7L V-8 Accelerator Pedal Position Sensor (APPS) is a linear potentiometer that provides the PCM with a
voltage signal proportional to the angle, or position of the accelerator pedal. The APPS signal along with inputs from
other sensors is used by the PCM to calculate the throttle plate position which is electronically controlled.
When Monitored:
Continuously with the ignition on and engine running.
Set Condition:
This DTC will set if the monitored TPS throttle angle between the angles of 6° and 120° and the degree
change is greater than 5° within a period of less than 7.0 msec.
Possible Causes
RELATED TPS ENGINE DTC’S PRESENT
THROTTLE POSITION SENSOR
POWERTRAIN CONTROL MODULE
Always perform the 45RFE/545RFE Pre-Diagnostic Troubleshooting Procedure before proceeding. (Refer to
21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
Diagnostic Test
1.DETERMINING IF RELATED ENGINE TPS DTC’S ARE PRESENT
With the scan tool, check Engine DTC’s including all one trip failures.
Are there any Engine TPS/APPS DTCs present?
Ye s>>
Refer to the Powertrain category and perform the appropriate symptom.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21- TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
No>>
Go To 2
2.CHECK TO SEE IF DTC IS CURRENT
With the scan tool, record the DTC EVENT DATA to help identify the conditionsinwhichtheDTCwasset.
With the scan tool, erase Transmission DTCs.
NOTE: To erase EVENT DATA information, a BATTERY DISCONNECT must be performed. Performing a BAT-
TERY DISCONNECT may reset all learned transmission values to controller default. This may lead to erratic
shift schedules.
Drive the vehicle and try to duplicate the conditions in which the DTC was reported by the DTC EVENT DATA.
With the scan tool, read Transmission DTCs.
Did the DTC P0124 TPS/APPS INTERMITTENT, reset?
Ye s>>
Go To 3
No>>
Go To 4
3.CHECK THROTTLE POSITION SENSOR OPERATION
Ignition On, Engine Not Running.
With the scan tool, under Transmission Sensors, monitor the TPS voltage inthe following step.
Slowly open and close the throttle while checking for erratic voltage changes.
IfequippedwithETC,usetheETCThrottleFollowertestinthescantooltocheck for erratic voltage changes.
Was the TPS voltage change smooth and consistent?
Ye s>>
Using the schematics as a guide, check the Powertrain Control Module (PCM)terminals for corrosion,
damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems
are found, replace the PCM per the Service Information. With the scan tool,perform QUICK LEARN.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21- TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
No>>
Replace the Throttle Position Sensor per the Service Information.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21- TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
4.INTERMITTENT WIRING AND CONNECTORS
The conditions necessary to set the DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specifictothiscircuit.
Wiggle the wiring and connectors while checking for shorted and open circuits.
With the scan tool, check the DTC EVENT DATA to help identify the conditionsin which the DTC was set.
Were there any problems found?
Ye s>>
Repair as necessary.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21- TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
No>>
Te s t C o m p l e t e .
P0218-HIGH TEMPERATURE OPERATION ACTIVATED
For a complete wiring diagramRefer to Section 8W.
Theory of Operation
The DTC is intended as an informational DTC to aid the technician in determining the root cause of a customer
dirveability issue. The DTC is also intended to alert the technician to determine if a cooling system malfunction has
occurred or if an additional transmission air to oil cooler is needed to support the customers driving behavior.
When Monitored:
Whenever the engine is running.
Set Condition:
Immediately after a Overheat shift schedule is activated when the Transmission temperature exceeds 127° C
or 260° F.
Possible Causes
H I G H T E M P E R AT U R E O P E R AT I O N A C T I VAT E D
TORQUE CONVERTER CLUTCH SLIPPING / NOT ACTIVATING
EXCESSIVE TIME IDLING IN GEAR
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
Diagnostic Test
1.HIGH TEMPERATURE OPERATION
This DTC is an informational DTC designed to aid the Technician in diagnosing shift quality complaints.
This DTC indicates that the transmission has been operating in the
Overheatshift schedule which may generate
a customer complaint.
The customer driving patterns may indicate the need for an additional transmission oil cooler.
Verify proper Engine cooling system operation which would affect proper transmission operation.
Verify proper torque converter clutch operation.
With the scan tool, check the DTC EVENT DATA to help identify the conditionsin which the DTC was set.
If there are no possible causes remaining, view repair.
Repair
Repair the cause of transmission overheating. Refer to the Service Information for the proper repair
procedure. Make sure to check for any Service Bulletins pertaining to thisproblem.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21- TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
P0562-BATTERY VOLTAGE LOW
For a complete wiring diagramRefer to Section 8W.
7.INTERMITTENT WIRING AND CONNECTORS
The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specifictothiscircuit.
Wiggle the wires while checking for shorted and open circuits.
With the scan tool, check the DTC EVENT DATA to help identify the conditionsin which the DTC was set.
Where there any problems found?
Ye s>>
Repair as necessary.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21- TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
No>>
Te s t C o m p l e t e .
P0602-CONTROL MODULE PROGRAMMING ERROR/NOT PROGRAMMED
For a complete wiring diagramRefer to Section 8W
Theory of Operation
The controller is programmed during manufacturing with generic softwareto facilitate testing. However, generic soft-
ware does not have the proper calibrations to control a transmission in a vehicle. The check for generic software is
made at power-up. If generic software is found , the MIL will light immediately and the MIL will stay on even if the
fault is cleared, until the proper software is installed. Note: Transmission will be placed in limp-in mode.
When Monitored:
Check for generic software is made at power-up
Set Condition:
If generic software is found, the MIL will light immediately. This DTC is designed to inform the technician that
the controller still has generic software installed.
Possible Causes
PCM - PROGRAMMING ERROR
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
Diagnostic Test
1.CONTROL MODULE PROGRAMMING ERROR
NOTE: Controller is programmed with generic software and will not allow the correct vehicle Powertrain
management.
With the scan tool.
Record the vehicles controller part number.
Select Use Controller Part Number under the Flash Tab.
Flash the controller with the correct software.
Verify the controller flashed successfully.
Te s t C o m p l e t e
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21- TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
P0604-INTERNAL CONTROL MODULE RAM
For a complete wiring diagramRefer to Section 8W.
Theory of Operation
After the controller is reset (ignition turned to the RUN position), the microprocessor checks the integrity of each
RAM location by writing to it and reading back from it. The read value shouldbe same as value written.
When Monitored:
One time after the controller is reset (ignition turned to the RUN position).
Set Condition:
Whenever the Powertrain Control Module (PCM) detects an internal controller problem.
Possible Causes
POWERORGROUNDCIRCUIT
POWERTRAIN CONTROL MODULE
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
Diagnostic Test
1.CHECK WIRING AND CONNECTORS FOR INTERMITTENT OPERATION
Using the schematics as a guide, check the Powertrain Control Module (PCM)terminals for corrosion, damage, or
terminal push out. Pay particular attention to all power and ground circuits.
NOTE: Due to the integration of the Powertrain and Transmission Control Modules, the transmission part of
the PCM has it’s own specific power and ground circuits.
Wiggle the wires while checking for shorted and open circuits.
Check for any Service Bulletins that may apply.
Were there any problems found?
Ye s>>
Repair the power and/or ground circuits to the PCM and Transmission Control Relay as necessary.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21- TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
No>>
Replace the PCM per the Service Information. With the scan tool, perform QUICK LEARN.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21- TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
P0605-INTERNAL CONTROL MODULE ROM
For a complete wiring diagramRefer to Section 8W.
Theory of Operation
After the controller is reset (ignition turned to the RUN position) the microprocessor checks the integrity of the pro-
gram memory (ROM). A checksum is calculated by adding all used bytes in the program memory. The sum should
be the same as a known constant stored in the program memory.
When Monitored:
One time after the controller is reset (ignition turned to the RUN position).
Set Condition:
Whenever the Powertrain Control Module (PCM) detects an internal controller problem.
Possible Causes
POWERORGROUNDCIRCUIT
POWERTRAIN CONTROL MODULE
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
Diagnostic Test
1.CHECK WIRING AND CONNECTORS FOR INTERMITTENT OPERATION
Using the schematics as a guide, check the Powertrain Control Module (PCM)terminals for corrosion, damage, or
terminal push out. Pay particular attention to all power and ground circuits.
NOTE: Due to the integration of the Powertrain and Transmission Control Modules, the transmission part of
the PCM has it’s own specific power and ground circuits.
Wiggle the wires while checking for shorted and open circuits.
Check for any Service Bulletins that may apply.
Were there any problems found?
Ye s>>
Repair the power and/or ground circuits as necessary.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21- TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
No>>
Replace the PCM per the Service Information. With the scan tool, perform QUICK LEARN.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21- TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)