Dodge Dakota (R1). Manual - part 891

TEST

ACTION

APPLICABILITY

Turn the ignition off to the lock position.
Disconnect the PCM harness connectors.
Check connectors - Clean/repair as necessary
Measure the resistance between the 3-4 Shift Solenoid Control circuit and ground.
Is the resistance below 5.0 ohms?

All

Yes

→

Repair or Replace the Transmission Solenoid Assembly for a short
to ground.
Perform TRANSMISSION VERIFICATION TEST VER - 1.

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Go To

Turn the ignition off to the lock position.
Disconnect the PCM harness connectors.
Check connectors - Clean/repair as necessary
NOTE: Resistance between the 3-4 Shift Solenoid Control circuit and the
Governor Pressure Solenoid Control circuit should be 28 to 68 ohms.
Measure the resistance between the 3-4 Shift Solenoid Control circuit and the
Governor Pressure Solenoid Control circuit in the PCM harness connector.
NOTE: Resistance between the 3-4 Shift Solenoid Control circuit and the
TCC Solenoid Control circuit should be 50 to 120 ohms.
Measure the resistance between the 3-4 Shift Solenoid Control circuit and the TCC
Solenoid Control circuit in the PCM harness connector.
Is the resistance of both measurements within the specified ranges?

All

Yes

→

Go To

→

Replace the Transmission Solenoid Assembly in accordance with
the Service Information.
Perform TRANSMISSION VERIFICATION TEST VER - 1.

Turn the ignition off to the lock position.
Disconnect the PCM harness connectors.
Remove the Transmission Control Relay.
Check connectors - Clean/repair as necessary
NOTE: Resistance between the 3-4 Shift Solenoid circuit and the circuits
below should be above 100 kohms.
Measure the resistance between the Transmission 3-4 Shift Solenoid Control circuit
and the...
*Sensor Ground circuit in the C2 PCM harness connector.
*Transmission Temp Sensor Signal circuit in the PCM harness connector.
*Governor Pressure Sensor Signal circuit in the PCM harness connector.
*Transmission 5-volt Supply circuit in the C2 PCM harness connector.
Are the resistance values, to any of the listed circuits, below 100 kohms?

All

Yes

→

Replace the Transmission Solenoid Assembly in accordance with
the Service Information.
Perform TRANSMISSION VERIFICATION TEST VER - 1.

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Go To

If there are no possible causes remaining, view repair.

All

Repair

Replace the Powertrain Control Module in accordance with the
Service Information.
Perform TRANSMISSION VERIFICATION TEST VER - 1.

296

TRANSMISSION

P0753-TRANS 3-4 SHIFT SOL/TRANS RELAY CIRCUITS —

Continued

TEST

ACTION

APPLICABILITY

At this time, the conditions required to set the DTC are not present.
NOTE: Use the Freeze Frame Data to help duplicate the conditions that set
the DTC. Pay particular attention to the DTC set conditions, such as, VSS,
MAP, ECT, and Load.
NOTE: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, broken, bent, pushed out, corroded terminals, or partially
broken wires.
NOTE: Refer to any technical service bulletins that may apply.
Were any problems found?

All

Yes

→

Repair as necessary.
Perform TRANSMISSION VERIFICATION TEST VER - 1.

→

Test Complete.

297

TRANSMISSION

P0753-TRANS 3-4 SHIFT SOL/TRANS RELAY CIRCUITS —

Continued

Symptom:

P0783-3-4 SHIFT SOL, NO RPM DROP AT LOCKUP

When Monitored and Set Condition:

P0783-3-4 SHIFT SOL, NO RPM DROP AT LOCKUP

When Monitored:

Continuously with the key on and the engine running.

Set Condition:

This code will set if the expected engine RPM drop does not occur within

4 seconds of the gear change being requested by the PCM. Three consecutive bad tests are
required to set the code.

POSSIBLE CAUSES

OTHER DTC’S PRESENT

INTERMITTENT 3-4 SOLENOID

FLUID LEVEL AND CONDITION

TRANSMISSION

OIL BURNT OR OIL PAN HAS EXCESSIVE DEBRIS

TEST

ACTION

APPLICABILITY

Turn the ignition on.
With the DRBIII

t, read DTCs.

Is the Good Trip Counter for P0783 displayed and equal to 0?

All

Yes

→

Go To

→

Go To

298

TRANSMISSION

TEST

ACTION

APPLICABILITY

Turn the ignition on.
With the DRB, read DTCs.
Are any of the following DTCs present?

All

P-1765 Trans 12 V Supply Relay Ctrl Ckt