Chrysler Town, Dodge Caravan. Manual — part 998
TEST
ACTION
APPLICABILITY
6
Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Remove the Transmission Control Relay.
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.
Ignition on, engine not running.
Using a 12-volt test light connected to ground, check both Transmission Control
Relay Output 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 test light illuminate brightly?
All
Yes
→ Go To 7
No
→ Repair the Transmission Control Relay Output circuit for an open
or high resistance.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
7
Turn the ignition off to the lock position.
Install a substitute Relay in place of the Transmission Control Relay.
Start the engine.
Using a voltmeter, measure the battery voltage.
With the DRBIII
t, monitor the Transmission Switched Battery Voltage.
Compare the DRBIII
t Transmission Switched Battery voltage to the actual battery
voltage.
Is the DRBIII
t voltage within 2.0 volts of the battery voltage?
All
Yes
→ Replace the Transmission Control Relay.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No
→ Go To 8
8
Using the schematics as a guide, inspect the wiring and connectors. Repair as
necessary. Pay particular attention to all power and ground circuits.
If there are no possible causes remaining, view repair.
All
Repair
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.
9
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.
28
TRANSMISSION - EATX
P0562-LOW BATTERY VOLTAGE —
Continued
Symptom:
P0604-INTERNAL TCM
When Monitored and Set Condition:
P0604-INTERNAL TCM
When Monitored:
Set Condition:
The TCM is reporting internal errors and must be replaced.
POSSIBLE CAUSES
TCM - INTERNAL ERROR
TEST
ACTION
APPLICABILITY
1
Using the schematics as a guide, inspect the wiring and connectors. Repair as
necessary. Pay particular attention to all power and ground circuits.
If there are no possible causes remaining, view repair.
All
Repair
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.
29
TRANSMISSION - EATX
Symptom:
P0605-INTERNAL TCM
When Monitored and Set Condition:
P0605-INTERNAL TCM
When Monitored:
Set Condition:
The TCM is reporting internal errors and must be replaced.
POSSIBLE CAUSES
TCM - INTERNAL ERROR
TEST
ACTION
APPLICABILITY
1
Using the schematics as a guide, inspect the wiring and connectors. Repair as
necessary. Pay particular attention to all power and ground circuits.
If there are no possible causes remaining, view repair.
All
Repair
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.
30
TRANSMISSION - EATX
Symptom:
P0613-INTERNAL TCM
When Monitored and Set Condition:
P0613-INTERNAL TCM
When Monitored:
After the ignition is turned to the RUN position or after cranking the
engine.
Set Condition:
The controller runs a self diagnostic test that checks the integrity of the
controllers RAM, ROM, and microprocessor. If the self diagnostic test fails in any one of
series of different categories, the DTC will set.
POSSIBLE CAUSES
TCM - INTERNAL ERROR
TEST
ACTION
APPLICABILITY
1
Using the schematics as a guide, inspect the wiring and connectors. Repair as
necessary. Pay particular attention to all power and ground circuits.
If there are no possible causes remaining, view repair.
All
Repair
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.
31
TRANSMISSION - EATX
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