2001 CHRYSLER VOYAGER Service Manual

battery replacement ABS instrument panel dashboard navigation update seats

Page 4225 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
9 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Note: Che

TEST ACTION APPLICABILITY
9 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the 2/4 Pressure Switch Sense circuit from the TCM
harness connector to the Transmission Solenoid/Pressure Switch Assembly harness
connector.
Is the resistance above 5.0 ohms?All
Ye s®Repair the 2/4 Pressure Switch Sense circuit or an open.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 10
10 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the 2/4 Pressure Switch Sense circuit.
Is the resistance below 5.0 ohms?All
Ye s®Repair the 2/4 Pressure Switch Sense circuit for a short to ground.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 11
11 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly 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+ circuit and the Transmission Control
Relay Output circuit in the Transmission Control Relay connector in the IPM.
Ignition on, engine not running.
Measure the voltage of the 2/4 Pressure Switch Sense circuit in the TCM harness
connector.
Is the voltage above 0.5 volt?All
Ye s®Repair the 2/4 Pressure Switch Sense circuit for a short to
voltage.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 12
12 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.
13 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®Test Complete.
121
TRANSMISSION
P1788-2/4 HYDRAULIC PRESSURE TEST FAILURE ÐContinued

Page 4226 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom:
P1789-2-4/OD HYDRAULIC PRESSURE TEST FAILURE
When Monitored and Set Condition:
P1789-2-4/OD HYDRAULIC PRESSURE TEST FAILURE
When Monitored: In any forward gear with engine speed above 1000 RP

Symptom:
P1789-2-4/OD HYDRAULIC PRESSURE TEST FAILURE
When Monitored and Set Condition:
P1789-2-4/OD HYDRAULIC PRESSURE TEST FAILURE
When Monitored: In any forward gear with engine speed above 1000 RPM shortly after
a shift and every minute thereafter.
Set Condition: After a shift into a forward gear, with engine speed > 1000 RPM, the TCM
momentarily turns on element pressure to the clutch ckts that don't have pressure to
identify the correct pressure sw closes. If the pressure sw does not close 2 times the code
sets.
POSSIBLE CAUSES
CONDITION P1789 PRESENT
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
2NOTE: The vehicle must be driven to set this DTC, the transmission must be
warm or hot with the Engine RPM above 1000 RPM.
This DTC is an indicator of 2/4 and/or O/D Hydraulic Pressure Switch DTC's present.
Perform the tests for P1787 and/or P1788 determine which switch is failing.
If there are no possible causes remaining, view repair.All
Repair
Refer to symptom list for problems related to Transmission and
perform tests for P1787 and/or P1788.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
122
TRANSMISSION

Page 4227 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom:
P1790-FAULT IMMEDIATELY AFTER SHIFT
When Monitored and Set Condition:
P1790-FAULT IMMEDIATELY AFTER SHIFT
When Monitored: After a speed ratio error is stored.
Set Condition: This code is set

Page 4228 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom:
P1791-LOSS OF PRIME
When Monitored and Set Condition:
P1791-LOSS OF PRIME
When Monitored: If the transmission is slipping in any forward gear and the pressure
switches are not indicating pres

Page 4229 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
2 The Transmission Fluid temperature must be above 21É C or 70É F prior to checking
fluid level. Adjusting fluid level on a cold transmission will result in an overfilled
t

TEST ACTION APPLICABILITY
2 The Transmission Fluid temperature must be above 21É C or 70É F prior to checking
fluid level. Adjusting fluid level on a cold transmission will result in an overfilled
transmission.
Check the Transmission Fluid Level per the Service Information.
Is the Transmission Fluid Level at the proper level?All
Ye s®Go To 3
No®If the Transmission Fluid is low, repair any Transmission Fluid
leak as necessary and adjust the Transmission Fluid Level in
accordance with the Service Information.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
3 Place the gear selector in park.
Start the engine.
The Transmission must be at operating temperature prior to checking pressure. A
cold Transmission will give higher readings.
Place the Transmission in Reverse.
With the DRBIIIt, observe the Transmission Pressure Switch states.
Are any of the Pressure Switches closed?All
Ye s®Go To 4
No®Go To 6
4 The conditions necessary to set this DTC are not present at this time.
Test drive the vehicle. Allow the Transmission to shift through all gears and ranges.
Did you experience any Delayed Engagement and/ or No Drive condition?All
Ye s®Go To 6
No®Go To 5
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 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®Test Complete.
6 Remove and inspect the Transmission Oil Pan and Transmission Oil Filter per the
Service Information.
Does the Transmission Oil Pan contain excessive debris and/or is the Oil Filter
plugged?All
Ye s®Repair the cause of plugged Transmission Oil Filter. Refer to the
Service Information for repair procedures.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 7
7 With the DRBIIIt, perform a Shift Lever Position test. Follow the instructions on the
DRBIIIt.
Did the Shift Lever Position Test pass?All
Ye s®Go To 8
No®Refer to symptom list and perform test for DTC P0705.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
125
TRANSMISSION
P1791-LOSS OF PRIME ÐContinued

Page 4230 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
8 If there are no possible causes remaining, view repair. All
Repair
Replace the Transmission Oil Pump per the Service Information.
Perform 41TE TRANSMISSION VERIFICATION TES

Page 4231 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom:
P1792-BATTERY WAS DISCONNECTED
When Monitored and Set Condition:
P1792-BATTERY WAS DISCONNECTED
When Monitored: Whenever the key is in the Run/Start position.
Set Condition: This code is set

Page 4232 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
2 Turn ignition off to the lock position.
Disconnect the TCM harness connector.
Ignition on, engine not running.
Measure the voltage of the Fused B+ circuit in the TCM harnes

TEST ACTION APPLICABILITY
2 Turn ignition off to the lock position.
Disconnect the TCM harness connector.
Ignition on, engine not running.
Measure the voltage of the Fused B+ circuit in the TCM harness connector.
Is the voltage below 10.0 volts?All
Ye s®Go To 3
No®Go To 5
3 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Ignition on, engine not running.
Using a 12-volt test light connected to ground, check the Fused B+ circuit in the TCM
harness connector.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Does the test light illuminate brightly?All
Ye s®Go To 4
No®Repair the Fused B+ circuit for a open or high resistance. If the
fuse is open make sure to check for a short to ground.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
4 Turn ignition off to the lock position.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Using a 12-volt test light connected to 12-volts, check all the ground circuits in the
TCM harness connector.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Does the light illuminate brightly at all ground circuits?All
Ye s®Test Complete.
No®Repair the Ground circuit(s) as necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
5 Has the Quick Learn procedure been performed? All
Ye s®This is the cause of the DTC. Erase the DTC and return vehicle to
customer.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 6
6 Has the battery been disconnected, lost it's charge, or been replaced recently? All
Ye s®This is the cause of the DTC. Erase the DTC and return vehicle to
customer.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 7
7 Has the TCM been replaced or disconnected? All
Ye s®Replacing or disconnecting the TCM will set this DTC. Erase the
DTC and return the vehicle to the customer.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 8
128
TRANSMISSION
P1792-BATTERY WAS DISCONNECTED ÐContinued

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