Chrysler RG Voyager. Manual — part 1289
Symptom:
P0123-THROTTLE POSITION SENSOR/APPS HIGH
When Monitored and Set Condition:
P0123-THROTTLE POSITION SENSOR/APPS HIGH
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
TEST
ACTION
APPLICABILITY
1
NOTE: 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 DRBIII
t, read Engine DTC’s. Check and repair all Engine DTC’s prior to
performing any transmission symptom diagnostics.
With the DRBIII
t, 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 test
for 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.
All
Continue
2
With the DRBIII
t, check Engine DTC’s, this includes all one trip failures.
Are there any Engine TPS DTCs present?
All
Yes
→ Refer to the Powertrain category and perform the appropriate
symptom.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
No
→ Go To 3
157
TRANSMISSION - NGC
TEST
ACTION
APPLICABILITY
3
With the DRBIII
t, record the EATX EVENT DATA to help identify the conditions in
which the DTC was set.
With the DRBIII
t, 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 DRBIII
t, read Transmission DTCs.
Did the DTC P0123 THROTTLE POSITION SENSOR HIGH, reset?
All
Yes
→ Go To 4
No
→ Go To 5
4
NOTE: 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.
All
Repair
Replace the Powertrain Control Module per the Service Informa-
tion. WITH THE DRBIII
t PERFORM QUICK LEARN.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
5
The 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 DRBIII
t, check the EATX EVENT DATA to help identify the conditions in
which the DTC was set.
Were there any problems found?
All
Yes
→ Repair as necessary.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
No
→ Test Complete.
158
TRANSMISSION - NGC
P0123-THROTTLE POSITION SENSOR/APPS HIGH —
Continued
Symptom:
P0124-THROTTLE POSITION SENSOR/APPS INTERMITTENT
When Monitored and Set Condition:
P0124-THROTTLE POSITION SENSOR/APPS INTERMITTENT
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 ms.
POSSIBLE CAUSES
RELATED TPS ENGINE DTC’S PRESENT
THROTTLE POSITION SENSOR
POWERTRAIN CONTROL MODULE
INTERMITTENT WIRING AND CONNECTORS
TEST
ACTION
APPLICABILITY
1
NOTE: 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 DRBIII
t, read Engine DTC’s. Check and repair all Engine DTC’s prior to
performing any transmission symptom diagnostics.
With the DRBIII
t, 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 test
for 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.
All
Continue
2
With the DRBIII
t, check Engine DTC’s, this includes all one trip failures.
Are there any Engine TPS DTCs present?
All
Yes
→ Refer to the Powertrain category and perform the appropriate
symptom.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
No
→ Go To 3
159
TRANSMISSION - NGC
TEST
ACTION
APPLICABILITY
3
With the DRBIII
t, record the EATX EVENT DATA to help identify the conditions in
which the DTC was set.
With the DRBIII
t, 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 DRBIII
t, read Transmission DTCs.
Did the DTC P0124 THROTTLE POSITION SENSOR INTERMITTENT, reset?
All
Yes
→ Go To 4
No
→ Go To 6
4
Ignition On, Engine Not Running.
With the DRBIII
t, under Transmission Sensors, monitor the TPS voltage in the
following step.
Slowly open and close the throttle while checking for erratic voltage changes.
Did the TPS voltage change smooth and consistent?
All
Yes
→ Go To 5
No
→ Replace the Throttle Position Sensor per the Service Information.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
5
NOTE: 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.
All
Repair
Replace the Powertrain Control Module per the Service Informa-
tion. WITH THE DRBIII
t PERFORM QUICK LEARN.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
6
The 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 DRBIII
t, check the EATX EVENT DATA to help identify the conditions in
which the DTC was set.
Were there any problems found?
All
Yes
→ Repair as necessary.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
No
→ Test Complete.
160
TRANSMISSION - NGC
P0124-THROTTLE
POSITION
SENSOR/APPS
INTERMITTENT
—
Continued
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