Chrysler RG Voyager. Manual — part 1282
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 ECM
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 Engine Control Module.
Can the DRBIII
t communicate with the ECM?
All
Yes
→ Go To 4
No
→ Refer to the Communication category and perform the appropri-
ate symptom.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
129
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.
130
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 Service Bulletins related to the symptom.
Perform this procedure prior to Symptom diagnosis.
All
Continue
131
TRANSMISSION - EATX
TEST
ACTION
APPLICABILITY
2
With the DRBIII
t, check for other Transmission DTC’s
Is the DTC P0841 present also?
All
Yes
→ Refer to the Transmission category and perform the appropriate
symptom.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No
→ Go To 3
3
With the DRBIII
t, Check the STARTS SINCE SET counter for P1775.
NOTE: This counter only applies to the last DTC set.
Is the STARTS SINCE SET counter 2 or less?
All
Yes
→ Go To 4
No
→ Go To 10
4
Turn the ignition off to the lock position.
Remove the Starter Relay.
CAUTION: Removal of the Starter Relay is to prevent a Transmission, NO
RESPONSE, condition and disable the starter.
Install the Transmission Simulator, Miller tool #8333 and the Electronic Transmis-
sion Adapter kit 8333-1A.
Ignition on, engine not running.
With the DRBIII
t, monitor the L/R Pressure Switch state while pressing the
Pressure Switch Test button on the Transmission Simulator.
With the Transmission Simulator, select the L/R on the Pressure Switch selector.
While observing the LR pressure switch state with the DRBIII
t, depress the
Pressure Switch Test button.
Did the L/R Pressure Switch state change from OPEN to CLOSED when the test
button was pressed?
All
Yes
→ Inspect the Solenoid Switch Valve in the Valve Body per the
Service Information and repair or replace as necessary. If no
problems are found in Valve Body, replace the Transmission
Solenoid/Pressure Switch Assembly per the Service Information.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No
→ Go To 5
5
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 L/R 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
Yes
→ Repair the L/R Pressure Switch Sense circuit for an open.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No
→ Go To 6
132
TRANSMISSION - EATX
P1775-SOLENOID SWITCH VALVE LATCHED IN TCC POSITION —
Continued
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