Dodge Dakota (R1). Manual — part 140
TEST
ACTION
APPLICABILITY
3
NOTE: Ensure the ECM harness connectors are connected and the ASD/
Diesel Power Relay is installed before continuing.
Turn the ignition off.
Disconnect the Needle Movement Sensor harness connector.
Connect a jumper wire between the Needle Movement Sensor harness connector
cavities.
Turn the ignition on.
With the DRB, read ECM DTCs.
Did DTC P1201 NEEDLE MOVEMENT SENSOR SRC LOW EXCEEDED set?
All
Yes
→
Replace the Needle Movement Sensor in accordance with the
Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
4
Turn the ignition off.
Disconnect the Needle Movement Sensor harness connector.
Connect a jumper wire between ground and the Needle Movement Sensor Signal
circuit.
Turn the ignition on.
With the DRB, read ECM DTCs.
Did DTC P1201 NEEDLE MOVEMENT SENSOR SRC LOW EXCEEDED set?
All
Yes
→
Repair the Needle Movement Sensor Ground circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
5
Turn the ignition off.
Disconnect the ECM harness connectors.
Disconnect the Needle Movement Sensor harness connector.
Measure the resistance of the Needle Movement Sensor Signal circuit.
Is the resistance below 5.0 ohms?
All
Yes
→
No
→
Repair the Needle Movement Sensor Signal circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
6
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Engine Control Module in accordance
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
95
DRIVEABILITY - DIESEL
P1201-NEEDLE MOVEMENT SENSOR SRC HIGH EXCEEDED —
Continued
TEST
ACTION
APPLICABILITY
7
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.
96
DRIVEABILITY - DIESEL
P1201-NEEDLE MOVEMENT SENSOR SRC HIGH EXCEEDED —
Continued
Symptom:
P1201-NEEDLE MOVEMENT SENSOR SRC LOW EXCEEDED
When Monitored and Set Condition:
P1201-NEEDLE MOVEMENT SENSOR SRC LOW EXCEEDED
When Monitored:
With the ignition on.
Set Condition:
The ECM detects the voltage on the needle movement sensor signal circuit
below 0.141 volt.
POSSIBLE CAUSES
INTERMITTENT CONDITION
NEEDLE MOVEMENT SENSOR
NEEDLE MOVEMENT SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
NEEDLE MOVEMENT SENSOR SIGNAL AND GROUND CIRCUITS SHORTED TOGETHER
ENGINE CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, erase ECM DTCs.
Turn the ignition off, wait 30 seconds, then turn the ignition on.
With the DRB, read ECM DTCs.
Did this DTC reset?
All
Yes
→
No
→
2
Turn the ignition off.
Disconnect the Needle Movement Sensor harness connector.
Turn the ignition on.
With the DRB, read ECM DTCs.
Did DTC P1201 NEEDLE MOVEMENT SENSOR SRC HIGH EXCEEDED set?
All
Yes
→
Replace the Needle Movement Sensor in accordance with the
Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
3
Turn the ignition off.
Disconnect the ECM harness connectors.
Disconnect the Needle Movement Sensor harness connector.
Measure the resistance between ground and the Needle Movement Sensor Signal
circuit.
Is the resistance above 100 kohms?
All
Yes
→
No
→
Repair the Needle Movement Sensor Signal circuit for a short to
ground.
Perform ROAD TEST VERIFICATION - VER-2.
97
DRIVEABILITY - DIESEL
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the ECM harness connectors.
Disconnect the Needle Movement Sensor harness connector.
Measure the resistance between the Needle Movement Sensor Signal circuit and
Sensor Ground circuit.
Is the resistance above 100 kohms?
All
Yes
→
No
→
Repair the Needle Movement Sensor Signal and Ground circuits
for a short together.
Perform ROAD TEST VERIFICATION - VER-2.
5
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Engine Control Module in accordance
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
6
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.
98
DRIVEABILITY - DIESEL
P1201-NEEDLE MOVEMENT SENSOR SRC LOW EXCEEDED —
Continued
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