Chrysler Voyager. Manual — part 10
Symptom:
P0107-MAP SENSOR VOLTAGE TOO LOW
When Monitored and Set Condition:
P0107-MAP SENSOR VOLTAGE TOO LOW
When Monitored:
Engine speed between 600 to 3500 RPM. TPS voltage less than 1.2
volts. Battery voltage greater than 10.4 volts.
Set Condition:
The MAP sensor signal voltage is below 0.0392 volt for 1.7 seconds.
POSSIBLE CAUSES
MAP SENSOR VOLTAGE BELOW .04 VOLTS
(F855) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
(F855) 5-VOLT SUPPLY CIRCUIT OPEN
MAP SENSOR INTERNAL FAILURE
(K1) MAP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
(K1) MAP SENSOR SIGNAL CIRCUIT SHORTED TO (K900) SENSOR GROUND CIRCUIT
PCM
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
Yes
→ Go To 3
No
→ Go To 2
2
Start the engine.
With the DRBIII
t, read the MAP Sensor voltage.
Is the voltage below .04 volts?
All
Yes
→ Go To 3
No
→ Refer to the INTERMITTENT CONDITION symptom in the
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
3
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Turn the ignition on.
Measure the voltage of the (F855) 5-volt Supply circuit in the MAP Sensor harness
connector.
Is the voltage between 4.5 to 5.2 volts?
All
Yes
→ Go To 4
No
→ Go To 7
39
DRIVEABILITY - SBEC
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance of the (K1) MAP Sensor Signal circuit between the MAP
Sensor harness connector and ground.
Is the resistance below 100 ohms?
All
Yes
→ Repair the short to ground in the (K1) MAP Sensor Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No
→ Go To 5
5
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between the (K1) MAP Sensor Signal circuit and the (K900)
Sensor Ground circuit in the MAP Sensor harness connector.
Is the resistance below 100 ohms?
All
Yes
→ Repair the short to (K900) Sensor Ground circuit in the (K1) MAP
Sensor Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No
→ Go To 6
6
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Turn the ignition on.
With the DRBIII
t, monitor the MAP Sensor voltage.
Is the voltage above 1.2 volts?
All
Yes
→ Replace the MAP Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No
→ Go To 9
7
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance of the (F855) 5-volt Supply circuit in the MAP Sensor harness
connector to ground.
Is the resistance below 100 ohms?
All
Yes
→ Repair the short to ground in the (F855) 5-volt Supply circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No
→ Go To 8
8
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance of the (F855) 5-volt Supply circuit between the MAP Sensor
harness connector and the PCM harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 9
No
→ Repair the open in the (F855) 5-volt Supply circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
40
DRIVEABILITY - SBEC
P0107-MAP SENSOR VOLTAGE TOO LOW —
Continued
TEST
ACTION
APPLICABILITY
9
NOTE: Before Continuing: Disconnect the PCM harness connector and
check the related wiring terminals for corrosion, damage or terminal push
out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors. Pay
particular attention to all Power and Ground circuits.
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.
41
DRIVEABILITY - SBEC
P0107-MAP SENSOR VOLTAGE TOO LOW —
Continued
Symptom:
P0108-MAP SENSOR VOLTAGE TOO HIGH
When Monitored and Set Condition:
P0108-MAP SENSOR VOLTAGE TOO HIGH
When Monitored:
Engine speed between 600 to 3500 RPM. TP sensor voltage less than
1.2 volts for greater than 1.7 seconds. Battery voltage greater than 10.4 volts
Set Condition:
The MAP sensor signal voltage is greater than 4.96 volts.
POSSIBLE CAUSES
MAP SENSOR VOLTAGE ABOVE 4.6 VOLTS
(K1) MAP SENSOR SIGNAL CIRCUIT SHORTED TO (F855) 5-VOLT SUPPLY CIRCUIT
(K1) MAP SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
(K1) MAP SENSOR SIGNAL CIRCUIT OPEN
(K900) SENSOR GROUND CIRCUIT OPEN
MAP SENSOR INTERNAL FAILURE
PCM
TEST
ACTION
APPLICABILITY
1
Start the engine.
With the DRBIII
t, read the MAP Sensor voltage.
Is the voltage above 4.6 volts?
All
Yes
→ Go To 2
No
→ Refer to the INTERMITTENT CONDITION symptom in the
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
2
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between the (K1) MAP Sensor Signal circuit and the (F855)
5-volt Supply circuit in the MAP Sensor harness connector.
Is the resistance below 100 ohms?
All
Yes
→ Repair the short to the (F855) 5-volt Supply circuit in the (K1)
MAP Sensor Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No
→ Go To 3
42
DRIVEABILITY - SBEC
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