P0113-INTAKE AIR TEMPERATURE SENSOR HIGH
When Monitored: With the ignition on. Battery voltage greater than 10 volts.
Set Condition: The Intake Air Temperature (IAT) sensor voltage at the PCM is greater than 4.98 volts. One trip Fault.
SYMPTOM: P0123-THROTTLE POSITION SENSOR/APPS HIGH
When Monitored and Set Condition:
When Monitored: Continuously with the ignition on and engine running.
Set Condition: This DTC will set if the monitored TPS voltage rises above 4.94 volts for the period of 0.48 seconds.
Possible Causes
RELATED TPS ENGINE DTC'S PRESENT
POWERTRAIN CONTROL MODULE
INTERMITTENT WIRING AND CONNECTORS
Diagnostic Procedure
P0123-THROTTLE POSITION SENSOR/APPS HIGH - SYMPTOM
TESTACTION
1NOTE:
Low fluid level can be the cause of many transmission problems. If the fluid level is low locate and repair the leak then check and adjust the fluid level per the Service Information.
NOTE:
Always perform diagnostics with a fully charged battery to avoid false symptoms.
With the DRBIIIÂ, read Engine DTC's. Check and repair all Engine DTC's prior to performing any transmission symptom diagnostics. With the DRBIIIÂ, read Transmission DTC's. Record all DTC's and 1 Trip Failures.
NOTE:
Diagnose 1 Trip Failures as a fully matured DTC.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Repair as necessary. Perform the Shift Lever Position Test. If the test does not pass, refer to SYMPTOM: P0706-CHECK SHIFTER SIGNAL. For Gear Ratio DTC's, check and record all CVI's. Most DTC's set on start up but some must be set by driving the vehicle such that all diagnostic monitors have run.
NOTE:
Verify flash level of Powertrain Control Module. Some problems are corrected by software upgrades to the Transmission and Engine software.
NOTE:
Check for applicable TSB's related to the problem.
Perform this procedure prior to Symptom diagnosis.
Continue: Go To 2
2With the DRBIIIÂ, check Engine DTC's, this includes all one trip failures.
Are there any Engine TPS DTCs present?
Yes : refer to the Powertrain category and perform the appropriate symptom.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION TESTS - VER 1.
No : Go To 3
3With the DRBIIIÂ, record the EATX EVENT DATA to help identify the conditions in which the DTC was set.
With the DRBIIIÂ, erase Transmission DTCs.
NOTE:
To erase EATX EVENT DATA information, a BATTERY DISCONNECT must be performed. Performing a BATTERY DISCONNECT will reset all learned Transmission values to controller defaults which may lead to erratic shift schedules.
Drive the vehicle and try to duplicate the conditions in which the DTC was reported by the EATX EVENT DATA.
With the DRBIIIÂ, read Transmission DTCs.
Did the DTC P0123 THROTTLE POSITION SENSOR HIGH, reset?
Yes : Go To 4
No : Go To 5
4NOTE:
Due to the integration of the Powertrain and Transmission Control Modules, communication between the modules is internal.
Using the schematics as a guide, inspect the wiring and connectors. Repair as necessary. Pay particular attention to all power and ground circuits. If there are no possible causes remaining, view repair.
Repair: Replace the Powertrain Control Module per the Service Information. WITH THE DRBIIIÂ PERFORM QUICK LEARN.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION TESTS - VER 1.
5The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
Wiggle the wires while checking for shorted and open circuits.
Pay particular attention to the TPS signal and sensor ground circuits.
With the DRBIIIÂ, check the EATX EVENT DATA to help identify the conditions in which the DTC was set.
Were there any problems found?
Yes : Repair as necessary.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION TESTS - VER 1.
No : Test Complete.
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Tuesday, November 30th, 2010 AT 1:09 AM
