Chrysler Voyager. Manual — part 477

TEST

ACTION

APPLICABILITY

4

Ignition on, engine not running.
With the DRBIII

t, erase Transmission DTC’s.

Start the engine in park.
With the DRBIII

t, read Transmission DTC’s.

Is the DTC, P1687- No Communication with the MIC, present?

All

Yes

→ Replace the Transmission Control Module per the Service Infor-

mation. WITH THE DRBIII

t PERFORM QUICK LEARN AND

REPROGRAM PINION FACTOR.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.

No

→ Test Complete.

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 shorted and open circuits.
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.

No

→ Test Complete.

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TRANSMISSION - EATX

P1687-NO COMMUNICATION WITH THE MIC —

Continued

Symptom:

P1694-BUS COMMUNICATION WITH ENGINE MODULE

When Monitored and Set Condition:

P1694-BUS COMMUNICATION WITH ENGINE MODULE

When Monitored:

Continuously with ignition key on.

Set Condition:

If no bus messages are received from the Powertrain Control Module for

10 seconds.

POSSIBLE CAUSES

NO COMMUNICATION WITH PCM

OTHER BUS PROBLEMS PRESENT

TRANSMISSION CONTROL MODULE

INTERMITTENT WIRING AND CONNECTORS

TEST

ACTION

APPLICABILITY

1

With the DRBIII

t, Check the STARTS SINCE SET counter for P1694.

Note: This counter only applies to the last DTC set.
Is the STARTS SINCE SET counter for P1694 set to 0?

All

Yes

→ Go To 2

No

→ Go To 5

2

With the DRBIII

t, check all of the other modules on the vehicle for evidence of a

vehicle bus problem.
Bus related DTC’s in other modules point to an overall vehicle bus problem. Other
symptoms such as a customer complaint of intermittent operation of bus controlled
features also indicate a bus problem.
Does the PRNDL display indicate

9No Bus9 or is there any evidence of an overall

vehicle bus problem?

All

Yes

→ Refer to the Communication category and perform the appropri-

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

No

→ Go To 3

3

Ignition on, engine not running.
With the DRBIII

t, attempt to communicate with the Powertrain Control Module

(PCM).
Can the DRBIII

t communicate with the PCM?

All

Yes

→ Go To 4

No

→ Refer to the Communication category and perform the appropri-

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

136

TRANSMISSION - EATX

TEST

ACTION

APPLICABILITY

4

Ignition on, engine not running.
With the DRBIII

t, erase Transmission DTC’s.

Start the engine in park.
With the DRBIII

t, read Transmission DTC’s.

Did the DTC, P1694, return?

All

Yes

→ Replace the Transmission Control Module per the Service Infor-

mation. WITH THE DRBIII

t PERFORM QUICK LEARN AND

REPROGRAM PINION FACTOR.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.

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 shorted and open circuits.
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.

No

→ Test Complete.

137

TRANSMISSION - EATX

P1694-BUS COMMUNICATION WITH ENGINE MODULE —

Continued

Symptom:

P1775-SOLENOID SWITCH VALVE LATCHED IN TCC POSITION

When Monitored and Set Condition:

P1775-SOLENOID SWITCH VALVE LATCHED IN TCC POSITION

When Monitored:

During an attempted shift into 1st gear.

Set Condition:

This DTC is set if three unsuccessful attempts are made to shift into 1st

gear in one given ignition start.

POSSIBLE CAUSES

RELATED DTC P0841 PRESENT

L/R PRESSURE SWITCH

TRANSMISSION CONTROL RELAY OUTPUT CIRCUIT OPEN

L/R PRESSURE SWITCH SENSE CIRCUIT OPEN

L/R PRESSURE SWITCH CIRCUIT SHORT TO GROUND

L/R PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE

TRANSMISSION CONTROL MODULE

INTERMITTENT WIRING AND CONNECTORS

TEST

ACTION

APPLICABILITY

1

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 TSB’s related to the symptom.
Perform this procedure prior to Symptom diagnosis.

All

Continue

Go To

2

138

TRANSMISSION - EATX