Dodge Dakota (R1). Manual — part 135
TEST
ACTION
APPLICABILITY
15
Turn the ignition off.
Disconnect the Vehicle Speed Sensor harness connector.
Disconnect the PCM harness connectors.
Check connectors - Clean/repair as necessary
Turn the ignition on.
Measure the voltage between ground and the 5-volt Supply circuit.
Is the voltage below 0.5 volt?
All
Yes
→
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
16
Turn the ignition off.
Repair the 5-volt Supply circuit for a short to voltage.
Reconnect all harness connectors except the Vehicle Speed Sensor harness connector.
Turn the ignition on.
Measure the voltage of the 5-volt Supply circuit.
Is the voltage above 4.8 volts?
All
Yes
→
The repair is complete.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
17
Turn the ignition off.
Disconnect the Vehicle Speed Sensor harness connector.
Disconnect the PCM C1 harness connector.
Check connectors - Clean/repair as necessary
Measure the resistance of the 5-volt Supply circuit between the Vehicle Speed Sensor
harness connector and the PCM C1 harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→
No
→
Repair the 5-volt Supply circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
18
Turn the ignition off.
Disconnect the Vehicle Speed Sensor harness connector.
Disconnect the PCM harness connectors.
Check connectors - Clean/repair as necessary
Measure the resistance between ground and the 5-volt Supply circuit.
Is the resistance above 100 kohms?
All
Yes
→
No
→
Repair the 5-volt Supply circuit for a short to ground.
Perform ROAD TEST VERIFICATION - VER-2.
75
DRIVEABILITY - DIESEL
P0500-VEH. SPEED SENSOR PEC FREQUENCY TOO HIGH —
Continued
TEST
ACTION
APPLICABILITY
19
Turn the ignition off.
Disconnect the Vehicle Speed Sensor harness connector.
Disconnect the PCM harness connectors.
Check connectors - Clean/repair as necessary
Measure the resistance between the 5-volt Supply circuit and the Sensor Ground
circuit in the Vehicle Speed Sensor harness connector.
Is the resistance above 100 kohms?
All
Yes
→
No
→
Repair the 5-volt Supply circuit for a short to the Sensor Ground
circuit.
Perform ROAD TEST VERIFICATION - VER-2.
20
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 ROAD TEST VERIFICATION - VER-2.
21
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
With the engine running at normal operating temperature, monitor the DRB
parameters related to the DTC while wiggling the wiring harness. Look for param-
eter values to change and/or a DTC to set.
Review the DTC When Monitored and Set Conditions. If possible, try to duplicate the
conditions under which the DTC was set.
Refer to any Technical Service Bulletins (TSB) that may apply.
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.
Were any of the above conditions present?
All
Yes
→
Repair as necessary
Perform ROAD TEST VERIFICATION - VER-2.
No
→
Test Complete.
76
DRIVEABILITY - DIESEL
P0500-VEH. SPEED SENSOR PEC FREQUENCY TOO HIGH —
Continued
Symptom:
P0522-OIL PRESSURE VOLTAGE TOO LOW
When Monitored and Set Condition:
P0522-OIL PRESSURE VOLTAGE TOO LOW
When Monitored:
With the ignition on.
Set Condition:
The PCM detects voltage on the oil pressure sensor signal circuit below 0.1
volt.
POSSIBLE CAUSES
CHECKING THE OIL PRESSURE SENSOR
OIL PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
OIL PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND
PCM - OIL PRESSURE SENSOR SIGNAL SHORT TO GROUND
INTERMITTENT CONDITION
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB III, erase PCM DTCs.
Cycle the ignition key on and off several times, leaving the key on for at least 10
seconds at a time.
With the DRB III, read PCM DTCs.
Did this DTC reset?
All
Yes
→
No
→
2
Turn the ignition off.
Disconnect the Oil Pressure Sensor harness connector.
Measure the voltage of the Oil Pressure Sensor Signal circuit.
Is the voltage between 4.7 and 5.3 volts?
All
Yes
→
Replace the Oil Pressure Sensor.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
3
Turn the ignition off.
Disconnect the Oil Pressure Sensor harness connector.
Disconnect the PCM harness connectors.
Measure the resistance between ground and the Oil Pressure Sensor Signal circuit.
Is the resistance above 100 kohms?
All
Yes
→
No
→
Repair the Oil Pressure Sensor Signal circuit for a short to
ground.
Perform ROAD TEST VERIFICATION - VER-2.
77
DRIVEABILITY - DIESEL
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the Oil Pressure Sensor harness connector.
Disconnect the PCM harness connectors.
Measure the resistance between Sensor Ground and the Oil Pressure Sensor Signal
circuit.
Is the resistance above 100 kohms?
All
Yes
→
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
Repair the Oil Pressure Sensor Signal circuit for a short to Sensor
Ground.
Perform ROAD TEST VERIFICATION - VER-2.
5
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
With the engine running and at normal operating temperature, monitor the DRB
parameters related to the DTC while wiggling the wiring harness. Look for param-
eter values to change and/or a DTC to set.
Review the DTC When Monitored and Set Conditions. If possible, try to duplicate the
conditions under which the DTC was set.
Refer to any Technical Service Bulletins (TSB) that may apply.
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.
Were any of the above conditions present?
All
Yes
→
Repair as necessary
Perform ROAD TEST VERIFICATION - VER-2.
No
→
Test Complete.
78
DRIVEABILITY - DIESEL
P0522-OIL PRESSURE VOLTAGE TOO LOW —
Continued
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