Chrysler RG Voyager. Manual - part 1266

TEST

ACTION

APPLICABILITY

With the DRBIII

t, read Transmission Control Module 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
present?

All

Yes

→ Refer to the Transmission category and perform the appropriate

symptom. If any of these DTC’s are present, they will cause a gear
ratio error. Perform the test for Loss of Prime first if it is present.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.

→ Go To 3

With the DRBIII

t, perform the 4th gear clutch test. Follow the instructions on the

DRBIII

Increase the throttle angle, 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 0?

All

Yes

→ Go To 4

→ Go To 5

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.
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

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 41TE TRANSMISSION VERIFICATION TEST - VER 1.

→ Test Complete.

With the DRBIII

t, read Transmission DTC’s.

Is the DTC P0845 and/or P0846 present also?

All

Yes

→ Replace the Solenoid/Pressure Switch Assembly per the Service

Information.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.

→ Go To 6

If there are no possible causes remaining, view repair.

All

Repair

Repair internal transmission problem. Check all of the compo-
nents related to the Overdrive and 2/4 clutches. Inspect the Oil
Pump per the Service Information and repair or replace as
necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.

TRANSMISSION - EATX

P0734-GEAR RATIO ERROR IN 4TH —

Continued

Symptom:

P0736-GEAR RATIO ERROR IN REVERSE

When Monitored and Set Condition:

P0736-GEAR RATIO ERROR IN REVERSE

When Monitored:

The Transmission Gear Ratio is monitored continuously while the

Transmission is in Gear.

Set Condition:

If the ratio of the input RPM to the output RPM does not match the

current Gear Ratio.

POSSIBLE CAUSES

RELATED DTC’S PRESENT

INTERMITTENT GEAR RATIO ERRORS

TRANSMISSION - INTERNAL

TEST

ACTION

APPLICABILITY

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 the engine DTC’s. Check and repair all engine DTC’s prior

to performing 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 Transmission Control Module. Some problems
are corrected by software upgrades to the Transmission Control Module.
NOTE: Check for applicable Service Bulletins related to the symptom.
Perform this procedure prior to Symptom diagnosis.

All

Continue

Go To

With the DRBIII

t, 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
present?

All

Yes

→ Refer to the Transmission category and perform the appropriate

symptom. If any of these DTC’s are present, they will cause a gear
ratio error. Perform the test for Loss of Prime first if it is present.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.

→ Go To 3

TRANSMISSION - EATX

TEST

ACTION

APPLICABILITY

With the DRBIII

t, perform the Reverse gear clutch test. Follow the instructions on

the DRBIII

Increase the throttle angle, 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 0?

All

Yes

→ Go To 4

→ Go To 5

The conditions to set this DTC are not present at this time.
Check the gearshift 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

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 41TE TRANSMISSION VERIFICATION TEST - VER 1.

→ Test Complete.

If there are no possible causes remaining, view repair.

All

Repair

Repair internal transmission problem. Check all of the compo-
nents related to the Reverse and L/R clutches. Inspect the Oil
Pump per the Service Information and repair or replace as
necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.

TRANSMISSION - EATX

P0736-GEAR RATIO ERROR IN REVERSE —

Continued

Symptom:

P0740-TCC OUT OF RANGE

When Monitored and Set Condition:

P0740-TCC OUT OF RANGE

When Monitored:

During Electronically Modulated Converter Clutch (EMCC) Operation.

Set Condition:

Transmission must be in EMCC, with input speed greater than 1750

RPM. TCC/L-R Solenoid achieves the maximum duty cycle and can not pull engine RPM
within 60 RPM of input speed. Or the Transmissions is in FEMCC and engine slips, TCC
greater than 100 RPM for 10 seconds.

POSSIBLE CAUSES

RELATED DTC’S PRESENT

INTERNAL TRANSMISSION

INTERMITTENT WIRING AND CONNECTORS

TEST

ACTION

APPLICABILITY

t, read the engine DTC’s. Check and repair all engine DTC’s prior

to performing Transmission Symptom Diagnostics.
With the DRBIII

t, read Transmission DTC’s. Record all DTC’s and 1 Trip Failures.

All

Continue

Go To

Ignition on, engine not running.
With the DRBIII

t, read Transmission DTC’s

Is the DTC P0750 and/or P0841 present also?

All

Yes

→ Refer to the Transmission category and perform the appropriate

symptom.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.

→ Go To 3

TRANSMISSION - EATX

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