Chrysler Pacifica 2004 Service Manual page 1627

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TRANSMISSION - NGC

P0733-GEAR RATIO ERROR IN 3RD —

With the DRBIII , read Transmission DTC's.

If any of these DTC's are present, perform their respective tests first.

Are there any Loss of Prime, Line Pressure Sensor and/or Speed Sensor DTCs

Yes → Refer to appropriate symptom in the Transmission category. If

With the DRBIII , perform the 3rd Gear Clutch test. Follow the instructions on the

Increase the throttle angle or TPS Degree to 30° for no more than a few seconds.

CAUTION: Do not overheat the transmission.

Did the clutch test pass, Input Speed remain at zero?

Yes → Go To 4

The conditions to set this DTC are not current 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.

Remove the Starter Relay.

CAUTION: Removal of the Starter Relay is to prevent a Transmission, NO

RESPONSE, condition and disable the starter.

Check the speed sensor wiring and connectors for good connection, then perform a

wiggle test using the Transmission Simulator, Miller tool #8333 and the Electronic

Transmission Adapter kit 8333-1A.

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.

With the DRBIII , 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.

→ Test Complete.

With the DRBIII , read Transmission DTC's.

Are the DTC's P0870 and/or P0871 present also?

Yes → Replace the Transmission Solenoid/Pressure Switch Assembly per

any of these DTC's are present, they will cause a gear ratio error.

Perform the test for Loss of Prime DTC first if it is present.

Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -

Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -

the Service Information.

Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -

APPLICABILITY