Dodge Dakota (R1). Manual — part 830
TEST
ACTION
APPLICABILITY
4
NOTE: Ensure the voltmeter leads meet the terminals in the connector and
that there is good terminal to wire connection.
NOTE: Ensure the voltmeter leads are connected for positive polarity
Perform a voltage drop test by backprobing between the Ambient Temperature
Sensor Signal circuit at the Ambient Temperature Sensor harness connector and
PCM harness connector.
Start the engine.
Allow the engine to idle.
Is the voltage below 0.10 volt?
All
Yes
→
No
→
Repair the high resistance in the Ambient Temperature Sensor
Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
5
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 POWERTRAIN VERIFICATION TEST VER - 5.
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 DRBIII
t
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 DRBIII
t Freeze Frame information. 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 POWERTRAIN VERIFICATION TEST VER - 5.
No
→
Test Complete.
52
DRIVEABILITY - GAS
P0071-AMBIENT TEMP SENSOR PERFORMANCE —
Continued
Symptom:
P0107-MAP SENSOR VOLTAGE TOO LOW
When Monitored and Set Condition:
P0107-MAP SENSOR VOLTAGE TOO LOW
When Monitored:
With the engine RPM above 416 but less than 1500, the TPS voltage
less than 1.13 volts, and battery voltage greater than 10.4 volts.
Set Condition:
The MAP sensor signal voltage is below 0.1 volt for 2.0 seconds with the
engine running.
POSSIBLE CAUSES
MAP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
INTERMITTENT CONDITION
5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND
5 VOLT SUPPLY CIRCUIT OPEN
MAP SENSOR INTERNAL FAILURE
PCM 5 VOLT SUPPLY CIRCUIT
PCM MAP SENSOR SIGNAL
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, read the MAP Sensor voltage.
Is the voltage below 1.2 volts.
All
No
→
Yes
→
2
Start the engine.
With the DRBIII
t, read the MAP Sensor voltage.
Is the voltage below .04 volts.
All
Yes
→
No
→
53
DRIVEABILITY - GAS
TEST
ACTION
APPLICABILITY
3
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 below may help in indentifying the intermittent condition.
While the engine is running at normal operating temperatures, monitor the DRBIII
t
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 DRBIII
t Freeze Frame information. If possible try and 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 POWERTRAIN VERIFICATION TEST VER - 5.
No
→
Test Complete.
4
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Turn the ignition on.
Measure the voltage of the 5 Volt Supply circuit in the MAP Sensor harness
connector.
Is the voltage between 4.5 to 5.2 volts?
All
Yes
→
No
→
5
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
With the DRBIII
t, monitor the MAP Sensor voltage.
Turn the ignition on.
Is the voltage above 1.2 volts?
All
Yes
→
Replace the MAP Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No
→
6
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector(s).
Measure the resistance of the MAP Sensor Signal circuit in the MAP Sensor harness
connector to ground.
Is the resistance below 5 ohms?
All
Yes
→
Repair the MAP Sensor Signal circuit for a short to ground.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No
→
7
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 POWERTRAIN VERIFICATION TEST VER - 5.
54
DRIVEABILITY - GAS
P0107-MAP SENSOR VOLTAGE TOO LOW —
Continued
TEST
ACTION
APPLICABILITY
8
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector(s).
Measure the resistance of the 5 Volt Supply circuit in the MAP Sensor harness
connector to ground.
Is the resistance below 5 ohms?
All
Yes
→
Repair the 5 Volt Supply circuit for a short to ground.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No
→
9
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance of the 5 Volt Supply circuit between the MAP Sensor harness
connector and the PCM harness connector.
Is the resistance below 5 ohms?
All
Yes
→
No
→
Repair the 5 Volt Supply circuit for an open.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
10
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 POWERTRAIN VERIFICATION TEST VER - 5.
55
DRIVEABILITY - GAS
P0107-MAP SENSOR VOLTAGE TOO LOW —
Continued
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