2001 CHRYSLER VOYAGER Service Manual

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Page 4145 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
11 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

Page 4146 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom:
P0720-OUTPUT SPEED SENSOR ERROR
When Monitored and Set Condition:
P0720-OUTPUT SPEED SENSOR ERROR
When Monitored: The transmission gear ratio is monitored continuously while the
transmission

Page 4147 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
2 Start the engine in park.
Raise the drive wheels off of the ground.
WARNING: PROPERLY SUPPORT THE VEHICLE.
Place transmission in drive, release foot from brake.
WARNING: BE

TEST ACTION APPLICABILITY
2 Start the engine in park.
Raise the drive wheels off of the ground.
WARNING: PROPERLY SUPPORT THE VEHICLE.
Place transmission in drive, release foot from brake.
WARNING: BE SURE TO KEEP HANDS AND FEET CLEAR OF ROTATING
WHEELS.
Note: The drive wheels must be turning at this point.
With the DRBIIIt, observe the Output RPM
Is the Output RPM below 100?All
Ye s®Go To 3
No®Go To 11
3 Turn the 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 rotary knob to the 3000/1250 position.
Turn the9Input/Output9switch to ON.
With the DRBIIIt, read the Input RPM and Output RPM.
Does the Input RPM read 3000 and the Output RPM read 1250 +/-50 RPM?All
Ye s®Go To 4
No®Go To 5
4 If there are no possible causes remaining, view repair. All
Repair
Replace the Output Speed Sensor.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
5 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Output Speed Sensor harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Output Speed Sensor Signal circuit from the TCM
harness connector to the Output Speed Sensor harness connector.
Is the resistance above 5.0 ohms?All
Ye s®Repair the Output Speed Sensor Signal circuit for an open.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 6
6 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Output Speed Sensor harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Speed Sensor Ground circuit from the TCM harness
connector to the Output Speed Sensor harness connector.
Is the resistance above 5.0 ohms?All
Ye s®Repair the Speed Sensor Ground circuit for an open.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 7
43
TRANSMISSION
P0720-OUTPUT SPEED SENSOR ERROR ÐContinued

Page 4148 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
7 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Output Speed Sensor harness connector.
Note: Check connectors - Clean/repai

TEST ACTION APPLICABILITY
7 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Output Speed Sensor harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the Output Speed Sensor Signal circuit.
Is the resistance Below 5.0 ohms?All
Ye s®Repair the Output Speed Sensor Signal circuit for a short to
ground.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 8
8 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch harness connector
Remove the Transmission Control Relay from the IPM.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ and Transmission Control Relay
Output circuits in the Transmission Control Relay connector in the IPM.
Ignition on, engine not running.
Measure the voltage of the Output Speed Sensor Signal circuit in the TCM harness
connector.
Is the voltage above 0.5 volts?All
Ye s®Repair the Output Speed Sensor Signal circuit for a short to
voltage.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 9
9 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the TRS harness connector.
Remove the Transmission Control Relay from the IPM.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ and Transmission Control Relay
Output circuits in the Transmission Control Relay connector in the IPM.
Ignition on, engine not running.
Measure the voltage of the Speed Sensor Ground circuit in the TCM harness
connector.
Is the voltage above 0.5 volts?All
Ye s®Repair the Speed Sensor Ground circuit for a short to voltage.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 10
10 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.
44
TRANSMISSION
P0720-OUTPUT SPEED SENSOR ERROR ÐContinued

Page 4149 of 4284

Page 4150 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom:
P0725-ENGINE SPEED SENSOR CIRCUIT (3.3L/3.8L)
When Monitored and Set Condition:
P0725-ENGINE SPEED SENSOR CIRCUIT (3.3L/3.8L)
When Monitored: Whenever the engine is running.
Set Condition: En

Page 4151 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
3 With the DRBIIIt, Check the STARTS SINCE SET counter.
NOTE: This counter only applies to the last DTC set.
Is the STARTS SINCE SET counter set at 0?All
Ye s®Go To 4
No®Go

Page 4152 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom:
P0725-ENGINE SPEED SENSOR CIRCUIT (3.5L)
When Monitored and Set Condition:
P0725-ENGINE SPEED SENSOR CIRCUIT (3.5L)
When Monitored: Whenever the engine is running.
Set Condition: Engine RPM l

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