2001 CHRYSLER VOYAGER sensor

TEST ACTION APPLICABILITY
8 The conditions necessary to set the 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 shorts and open circuits.
Check the power and ground circuits of the Transmission Control Module.
Check the vehicles battery condition.
Were any problems found?All
Ye s®Repair wiring and/or connectors as necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Test Complete.
50
TRANSMISSION
P0725-ENGINE SPEED SENSOR CIRCUIT (3.5L) ÐContinued

TEST ACTION APPLICABILITY
3NOTE: Low fluid level can be the cause of many transmission problems.
Check and adjust the fluid per the service information.
With the DRBIIIt, perform the 1st gear clutch test. Follow the instructions on the
DRBIIIt.
Increase the throttle angle-TPS Degree to 30É for no more than a few seconds.
CAUTION: Do not overheat the transmission.
Did the clutch test pass - Input speed remains at 0?All
Ye s®Go To 4
No®Go To 5
4 The conditions to set this DTC are not present at this time.
Check the gearshift linkage adjustment.
Gear ratio DTC's can be set by problems in the Input and Output Speed Sensor
circuits. If the vehicle passes the clutch test and still sets gear ratio DTC('s), check
the Speed Sensors for proper operation.
NOTE: Remove the Starter Relay from the PDC. This will prevent the
vehicle from being started in gear.
Check the Speed Sensor wiring and connectors for good connection, then perform a
wiggle test using the Transmission Simulator, Miller tool #8333 and the FWD
Adapter Cable kit, Miller tool #8333-1.
This DTC can also be set under extreme temperature conditions, this is usually
caused by an internal problem. Verify if the problem is only experienced under
extreme hot or cold conditions.
Were there any problems found?All
Ye s®Repair as necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Test Complete.
5 If there are no possible causes remaining, view repair. All
Repair
Repair internal transmission problem. Check all components
related to the Underdrive and L/R clutches and inspect the Oil
Pump.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
52
TRANSMISSION
P0731-GEAR RATIO ERROR IN 1ST ÐContinued

TEST ACTION APPLICABILITY
2 With the DRBIIIt, read Transmission DTC's
If any of these DTC's are present, perform their respective tests first.
Are DTC's P1791, P0715, P0720, P1794, P1720, present also?All
Ye s®Refer to appropriate symptom in the Transmission category. If
any of these DTC's are present, they will cause a gear ratio error.
Go to test for P1791 first if it is present.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 3
3NOTE: Low fluid level can be the cause of many transmission problems.
Check and adjust the fluid level per the Service Information.
With the DRBIIIt, perform the 2nd gear clutch test. Follow the instructions on the
DRBIIIt.
Increase the throttle angle, TPS Degree, to 30É for no more than a few seconds.
CAUTION: Do not overheat the transmission.
Did the clutch test pass, Input speed remain at 0?All
Ye s®Go To 4
No®Go To 5
4 The conditions to set this DTC are not present at this time.
Check the gearshift linkage adjustment.
Gear ratio DTC's can be set by problems in the Input and Output Speed Sensor
circuits. If the vehicle passes the clutch test and still sets Gear Ratio DTC(s), check
the Speed Sensors for proper operation.
NOTE: Remove the Starter Relay from the PDC. This will prevent the
vehicle from being started in gear.
Check the Speed Sensor wiring and connectors for good connection, then perform a
wiggle test using the Transmission Simulator, Miller tool #8333 and the FWD
Adapter Cable kit, Miller tool #8333-1.
This DTC can also be set under extreme temperature conditions, this is usually
caused by an internal problem. Verify if the problem is only experienced under
extreme hot or cold conditions.
Were there any problems found?All
Ye s®Repair as necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Test Complete.
5 With the DRBIIIt, read Transmission DTC's.
Is a DTC P1788 - 2/4 Hydraulic Pressure Switch and/or P1782 - 2/4 Pressure Switch
present also?All
Ye s®Replace the Solenoid/Pressure switch assembly.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 6
6 If there are no possible causes remaining, view repair. All
Repair
Repair internal transmission problem. If the transmission is to be
repaired, check all of the components related to the Underdrive
and 2/4 clutches. Inspect the pump per service information and
repair as necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
54
TRANSMISSION
P0732-GEAR RATIO ERROR IN 2ND ÐContinued

TEST ACTION APPLICABILITY
2 With the DRBIIIt, read Transmission DTC's
If any of these DTC's are present, perform their respective tests first.
Are DTC's P1791, P0715, P0720, P1794, P1720, present also?All
Ye s®Refer to appropriate symptom in the Transmission category. If
any of these DTC's are present, they will cause a gear ratio error.
Go to test for P1791 first if it is present.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 3
3NOTE: Low fluid level can be the cause of many transmission problems.
Check and adjust the fluid level per the Service Information.
With the DRBIIIt, perform the 3rd gear clutch test. Follow the instructions on the
DRBIIIt.
Increase the throttle angle, TPS Degree, to 30É for no more than a few seconds.
CAUTION: Do not overheat the transmission.
Did the clutch test pass, Input speed remain at 0?All
Ye s®Go To 4
No®Go To 5
4 The conditions to set this DTC are not present at this time.
Check the gearshift linkage adjustment.
Gear ratio DTC's can be set by problems in the Input and Output Speed Sensor
circuits. If the vehicle passes the clutch test and still sets Rear Ratio DTC(s), check
the Speed Sensors for proper operation.
NOTE: Remove the Starter Relay from the PDC. This will prevent the
vehicle from being started in gear.
Check the speed sensor wiring and connectors for good connection, then perform a
wiggle test using the Transmission Simulator, Miller tool #8333 and the FWD
Adapter Cable kit, Miller tool #8333-1.
This DTC can also be set under extreme temperature conditions, this is usually
caused by an internal problem. Verify if the problem is only experienced under
extreme hot or cold conditions.
Were there any problems found?All
Ye s®Repair as necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Test Complete.
5 With the DRBIIIt, read Transmission DTC's.
Is a DTC P1787 - OD Hydraulic Pressure Switch and/or P1781 - OD Pressure Switch
present also?All
Ye s®Replace the Solenoid/Pressure switch assembly.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 6
6 If there are no possible causes remaining, view repair. All
Repair
Repair internal transmission problem. If the transmission is to be
repaired, check all of the components related to the Underdrive
and Overdrive clutches. Inspect the pump per service information
and repair as necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
56
TRANSMISSION
P0733-GEAR RATIO ERROR IN 3RD ÐContinued

TEST ACTION APPLICABILITY
2 With the DRBIIIt, read Transmission Control Module DTC's
If any of these DTC's are present, perform their respective tests first.
Are DTC's P1791, P0715, P0720, P1794, P1720, present also?All
Ye s®Refer to appropriate symptom in the Transmission category. If
any of these DTC's are present, they will cause a gear ratio error.
Go to test P1791 first if it is present.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 3
3NOTE: Low fluid level can be the cause of many transmission problems.
Check and adjust the fluid level per the Service Information. If the fluid
level is low, locate and repair the leak before returning the vehicle to the
customer.
With the DRBIIIt, perform the 4th gear clutch test. Follow the instructions on the
DRBIIIt.
Increase the throttle angle, TPS Degree, to 30É for no more than a few seconds.
CAUTION: Do not overheat the transmission.
Did the clutch test pass, Input Speed remain at 0?All
Ye s®Go To 4
No®Go To 5
4 The conditions to set this DTC are not present at this time.
Check the gearshift linkage adjustment.
Gear Ratio DTC's can be set by problems in the Input and Output Speed Sensor
circuits. If the vehicle passes the clutch test and still sets Gear Ratio DTC(s), check
the Speed Sensors for proper operation.
NOTE: Remove the Starter Relay from the PDC. This will prevent the
vehicle from being started in gear.
Check the Speed Sensor wiring and connectors for good connection, then perform a
wiggle test using the Transmission Simulator, Miller tool #8333 and the FWD
Adapter Cable kit, Miller tool #8333-1.
This DTC can also be set under extreme temperature conditions, this is usually
caused by an internal problem. Verify if the problem is only experienced under
extreme hot or cold conditions.
Were there any problems found?All
Ye s®Repair as necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Test Complete.
5 With the DRBIIIt, read Transmission DTC's.
Is a DTC P1788 - 2/4 Hydraulic Pressure Switch and/or P1782 - 2/4 Pressure Switch
present also?All
Ye s®Replace the Solenoid/Pressure switch assembly.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 6
6 If there are no possible causes remaining, view repair. All
Repair
Repair internal transmission problem. If the transmission is to be
repaired, check all of the components related to the Overdrive and
2/4 clutches. Inspect the pump per service information and repair
as necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
58
TRANSMISSION
P0734-GEAR RATIO ERROR IN 4TH ÐContinued

TEST ACTION APPLICABILITY
3NOTE: Low fluid level can be the cause of many transmission problems.
Check and adjust the fluid level per the Service Information. If the fluid
level is low, locate and repair the leak before returning the vehicle to the
customer.
With the DRBIIIt, perform the Reverse gear clutch test. Follow the instructions on
the DRBIIIt.
Increase the throttle angle, TPS Degree, to 30É for no more than a few seconds.
CAUTION: Do not overheat the Transmission.
Did the clutch test pass, Input Speed remain at 0?All
Ye s®Go To 4
No®Go To 5
4 The conditions to set this DTC are not present at this time.
Check the gearshift linkage adjustment.
Gear Ratio DTC's can be set by problems in the Input and Output Speed Sensor
circuits. If the vehicle passes the clutch test and still sets Gear Ratio DTC(s), check
the Speed Sensors for proper operation.
NOTE: Remove the starter relay before installing the Transmission Simu-
lator.
Check the speed sensor wiring and connectors for good connection, then perform a
wiggle test using the Transmission Simulator, Miller tool #8333 and the FWD
Adapter Cable kit, Miller tool #8333-1.
This DTC can also be set under extreme temperature conditions, this is usually
caused by an internal problem. Ask the customer if the problem is only experienced
under extreme hot or cold conditions.
Were there any problems found?All
Ye s®Repair as necessary.
No®Test Complete.
5 If there are no possible causes remaining, view repair. All
Repair
Repair internal transmission problem. If the transmission is to be
repaired, check all of the components related to the Reverse and
L/R clutches. Inspect the pump per service information and repair
as necessary.
60
TRANSMISSION
P0736-GEAR RATIO ERROR IN REVERSE ÐContinued

Symptom:
P1794-SPEED SENSOR GROUND ERROR
When Monitored and Set Condition:
P1794-SPEED SENSOR GROUND ERROR
When Monitored: The transmission gear ratio is monitored continuously while the
transmission is in gear.
Set Condition: After a TCM reset in neutral and Input/Output equals a ratio of input to
output of 2.50
POSSIBLE CAUSES
INTERMITTENT WIRING AND CONNECTORS
SPEED SENSOR GROUND CIRCUIT OPEN
TCM - SPEED SENSOR GROUND
TEST ACTION APPLICABILITY
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 DRBIIIt, read the engine DTC's. Check and repair all engine DTC's prior
to performing Transmission Symptom Diagnostics.
With the DRBIIIt, 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 P0705 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 Transmission Control Module. Some problems
are corrected by software upgrades to the Transmission Control Module.
NOTE: Check for applicable TSB's related to the symptom.
Perform this procedure prior to Symptom diagnosis.All
Continue
Go To 2
2 Start the engine in park.
With the DRBIIIt, observe the Input and Output Speed Sensor readings.
Is the Output Speed Sensor reading twice the Input Speed Sensor reading?All
Ye s®Go To 4
No®Go To 3
133
TRANSMISSION

TEST ACTION APPLICABILITY
3 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 wiring while checking for shorts and open circuits.
Were there any problems found?All
Ye s®Repair as necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 4
4 Turn ignition off to the lock position.
CAUTION: Remove the Starter Relay from the IPM. This will prevent the
vehicle from being started in gear.
Install Transmission Simulator, Miller tool #8333 and the FWD Adapter Cable kit,
Miller tool #8333-1.
Ignition on, engine not running.
Using the Transmission Simulator, set the selector switch to the 3000/1250 position.
Turn the Input/Output switch to ON.
With the DRBIIIt, read the Input and Output Speed Sensor RPM.
Does the Input Speed read 3000 RPM and the Output Speed read 1250 RPM within
50 RPM?All
Ye s®Go To 5
No®Go To 5
5 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the TRS harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Input Speed Sensor Ground circuit from the TCM
harness connector to the Speed Sensor harness connector.
Is the resistance above 5.0 ohms?All
Ye s®Repair the Speed Sensor Ground circuit for an open or high
resistance..
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 6
6 If there are no possible causes remaining, view repair. All
Repair
Replace the TCM. WITH THE DRBIIItPERFORM QUICK
LEARN AND REPROGRAM PINION FACTOR.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
134
TRANSMISSION
P1794-SPEED SENSOR GROUND ERROR ÐContinued