U140F-IMPLAUSIBLE ENGINE VARIANT DATA
For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .
Ignition on, engine running with a system voltage between 9.0 and 16.0 volts.
ECM/PCM variant data received more than twice in a row over the CAN Bus.
ECM/PCM has wrong variant data installed.
ECM/PCM sending wrong or improper CAN message for more than 5.0 seconds.
| Possible Causes |
|---|
| FCM/TIPM DTCS PRESENT |
| WRONG ENGINE CONTROLLER SOFTWARE |
| WRONG TRANSMISSION CONTROLLER SOFTWARE |
| ENGINE CONTROL MODULE |
| TRANSMISSION CONTROL MODULE |
Always perform the CVT Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to Standard Procedure .
Ignition on with system voltage between 9.0 and 16.0 volts.
FCM/TIPM variant data received more than twice in a row over the CAN Bus.
One or more FCM/TIPM variant data received over the CAN Bus is not in a valid range for the period of 5.0 seconds.
| Possible Causes |
|---|
| FCM/TIPM WAS REPLACED |
| TCM WAS REPLACED |
| FCM/TIPM |
| TRANSMISSION CONTROL MODULE |
Always perform the CVT Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to Standard Procedure .
Ignition on with system voltage between 9.0 and 16.0 volts.
No lost communication faults detected.
An implausible vehicle speed signal sent from the ABS module for the period of 5.0 seconds.
| Possible Causes |
|---|
| FCM/TIPM CAN BUS DTCS PRESENT |
| ABS MODULE DTCS PRESENT |
| TRANSMISSION CONTROL MODULE |
Always perform the CVT Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to Standard Procedure .
Ignition on with system voltage between 9.0 and 16 volts.
No PCM CAN Bus DTCs present.
When the TCM receives an implausible engine torque signal from the PCM over the CAN Bus for a period of 1.0 second.
| Possible Causes |
|---|
| TOTALLY INTEGRATED POWER MODULE (TIPM) CAN BUS DTCS PRESENT |
| ENGINE MODULE DTCS PRESENT |
| POWERTRAIN CONTROL MODULE (PCM) |
| TRANSMISSION CONTROL MODULE (TCM) |
Always perform the CVT Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to Standard Procedure .
Ignition on with system voltage between 9.0 and 16.0 volts.
No PCM/ECM CAN Bus DTCs present.
When the TCM receives an implausible throttle pedal position over the CAN Bus from the PCM.
| Possible Causes |
|---|
| TOTALLY INTEGRATED POWER MODULE (TIPM) CAN BUS DTCS PRESENT |
| ENGINE MODULE DTCS PRESENT |
| POWERTRAIN CONTROL MODULE (PCM) |
| TRANSMISSION CONTROL MODULE (TCM) |
Always perform the CVT Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to Standard Procedure .
Ignition on with no PCM CAN Bus DTCs present.
When the TCM receives an implausible Torque Converter Clutch slip request (EMCC) from the PCM.
| Possible Causes |
|---|
| TOTALLY INTEGRATED POWER MODULE (TIPM) CAN BUS DTCS PRESENT |
| ENGINE MODULE DTCS PRESENT |
| POWERTRAIN CONTROL MODULE (PCM) |
| TRANSMISSION CONTROL MODULE (TCM) |
Always perform the CVT Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to Standard Procedure . .
Ignition on with no CAN DTCs detected.
When the TCM receives an engine torque request from the PCM over the CAN Bus that does not change for the period of 1.0 second.
| Possible Causes |
|---|
| TOTALLY INTEGRATED POWER MODULE (TIPM) CAN BUS DTCS PRESENT |
| ENGINE MODULE DTCS PRESENT |
| POWERTRAIN CONTROL MODULE (PCM) |
| TRANSMISSION CONTROL MODULE (TCM) |
Always perform the CVT Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to Standard Procedure .
Ignition on with no CAN DTCs detected.
When the TCM receives an engine torque request from the PCM over the CAN Bus that does not change for the period of 1.0 second.
| Possible Causes |
|---|
| TOTALLY INTEGRATED POWER MODULE (TIPM) CAN BUS DTCS PRESENT |
| ENGINE MODULE DTCS PRESENT |
| POWERTRAIN CONTROL MODULE (PCM) |
| TRANSMISSION CONTROL MODULE (TCM) |
Always perform the CVT Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to Standard Procedure .