Dodge Dakota (R1). Manual — part 902
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Remove the Transmission Control Relay from the PDC.
Check connectors - Clean/repair as necessary.
Turn the ignition on.
Using a 12-volt test light connected to ground, check the Generator Source circuit in
the Transmission Control Relay connector.
Does the test light illuminate brightly?
All
Yes
→
No
→
Repair the generator source circuit for an open.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
5
Turn the ignition off.
Remove the Transmission Control Relay from the PDC.
Disconnect the PCM harness connectors.
Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the Generator Source circuit in the
Transmission Control Relay connector.
Is the resistance above 100 kohms?
All
Yes
→
No
→
Repair the generator source circuit for a short to ground.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
6
Turn the ignition off.
Remove the Transmission Control Relay from the PDC.
Disconnect the PCM C2 harness connector.
Check connectors - Clean/repair as necessary.
Measure the resistance of the Transmission Control Relay Control circuit between
the Transmission Control Relay connector and the PCM C2 harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→
No
→
Repair the transmission control relay control circuit for an open.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
7
Turn the ignition off.
Remove the Transmission Control Relay from the PDC.
Disconnect the PCM C2 harness connector.
Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the Transmission Control Relay Control
circuit in the Transmission Control Relay connector.
Is the resistance above 100 kohms?
All
Yes
→
No
→
Repair the transmission control relay control circuit for a short to
ground.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
8
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
340
TRANSMISSION
P1765-TRANS 12 VOLT SUPPLY RELAY CTRL CIRCUIT —
Continued
TEST
ACTION
APPLICABILITY
9
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, or partially broken wires.
Note: Visually inspect the related wiring harness connectors. Look for
broken, bent, pushed out, or corroded terminals.
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.
341
TRANSMISSION
P1765-TRANS 12 VOLT SUPPLY RELAY CTRL CIRCUIT —
Continued
Symptom:
P1899-TRS PERFORMANCE
When Monitored and Set Condition:
P1899-TRS PERFORMANCE
When Monitored:
Continuously with the transmission in Park, Neutral, or Drive and
NOT in Limp—in mode.
Set Condition:
This code will set if the PCM detects an incorrect Park/Neutral state for
a given mode of vehicle operation.
POSSIBLE CAUSES
INTERMITTENT TRS SENSE CIRCUIT
TRS
TRS SENSE CIRCUIT OPEN
TRS SENSE CIRCUIT SHORTED TO GROUND
POWERTRAIN CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB III
t, read the DTCs.
Is the Good Trip Counter for P-1899 displayed and equal to 0?
All
Yes
→
No
→
2
Turn the ignition on.
With the DRBIII
t, read the TRS input state.
While moving the gear selector through all gear positions (Park to 1st and back to
Park), watch the DRBIII
t display.
Did the DRBIII
t display P/N and D/R in the correct gear positions?
All
Yes
→
Test Complete.
No
→
3
Turn the ignition off.
Disconnect the PCM C1 harness connector.
Disconnect the TRS harness connector.
Check connectors - Clean/repair as necessary
Measure the resistance of the TRS sense circuit between the PCM C1 harness
connector and the TRS harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→
No
→
Repair the TRS sense circuit for an open..
Perform TRANSMISSION VERIFICATION TEST VER - 1.
342
TRANSMISSION
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the PCM C1 harness connector.
Disconnect the TRS harness connector.
Check connectors - Clean/repair as necessary
Measure the resistance between ground and the P/N sense circuit.
Is the resistance below 5.0 ohms?
All
Yes
→
Repair the TRS sense circuit for a short to ground.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
No
→
5
Turn the ignition off.
Disconnect the PCM C1 harness connector.
Check connectors - Clean/repair as necessary.
Move the gear selector through all gear positions, from Park to 1st and back.
While moving the gear selector through the gear positions, measure the resistance
between ground and the TRS sense circuit in the PCM C1 harness connector.
Did the display change from above 10.0 ohms to below 10.0 ohms?
All
Yes
→
No
→
Replace the TRS in accordance with the Service Information.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
6
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
7
At this time, the conditions required to set the DTC are not present.
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.
Visually inspect the related wiring harness. Look for any chafed, pierced,
pinched, or partially broken wires.
Visually inspect the related wiring harness connectors. Look for broken,
bent, pushed out, or corroded terminals.
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.
343
TRANSMISSION
P1899-TRS PERFORMANCE —
Continued
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