Dodge Dakota (R1). Manual — part 891
TEST
ACTION
APPLICABILITY
14
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.
No
→
15
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
→
No
→
Replace the Transmission Solenoid Assembly in accordance with
the Service Information.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
16
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.
No
→
17
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
18
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.
No
→
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
1
Turn the ignition on.
With the DRBIII
t, read DTCs.
Is the Good Trip Counter for P0783 displayed and equal to 0?
All
Yes
→
No
→
298
TRANSMISSION
TEST
ACTION
APPLICABILITY
2
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
Refer to the appropriate symptom for diagnostics.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
P-0743 TCC Solenoid/Trans Relay Ckt
Refer to the appropriate symptom for diagnostics.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
P0753-Trans 3-4 Shift Sol/Relay Ckt
Refer to the appropriate symptom for diagnostics.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
P-1899 Park/Neutral Stuck
Refer to the appropriate symptom for diagnostics.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
P-0340 No Cam Signal at PCM
Refer to the appropriate symptom for diagnostics.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
P-0121 TPS Does Not Agree with MAP
Refer to the appropriate symptom for diagnostics.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
P-0122 TPS Low
Refer to the appropriate symptom for diagnostics.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
P-0123 TPS High
Refer to the appropriate symptom for diagnostics.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
No
→
3
Check Transmission fluid level, and condition of the transmission fluid for any
debris.
Is fluid level OK and clear of contamination?
All
Yes
→
No
→
Repair the fluid level and condition as necessary.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
299
TRANSMISSION
P0783-3-4 SHIFT SOL, NO RPM DROP AT LOCKUP —
Continued
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