Chrysler Voyager. Manual — part 63
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Ignition on, engine not running.
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 - NGC.
No
→ Go To 4
4
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between ground and the (K1) MAP Signal circuit at the MAP
Sensor harness connector.
Is the resistance below 100 ohms?
All
Yes
→ Repair the short to ground in the (K1) MAP Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
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 Signal circuit and the (K4) Sensor
ground circuit in the MAP Sensor harness connector.
Is the resistance below 100 ohms?
All
Yes
→ Repair the (K4) Sensor ground shorted to the (K1) MAP Signal
circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
No
→ Go To 6
6
NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage, or terminal push out. Repair as necessary.
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 - NGC.
7
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance of the (K6) 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 (K6) 5 Volt Supply circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
No
→ Go To 8
251
DRIVEABILITY - NGC
P0107-MAP SENSOR LOW —
Continued
TEST
ACTION
APPLICABILITY
8
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the (K6) 5 Volt Supply circuit from the MAP Sensor
harness connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 9
No
→ Repair the open in the (K6) 5 Volt Supply circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
9
NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage, or terminal push out. Repair as necessary.
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 - NGC.
252
DRIVEABILITY - NGC
P0107-MAP SENSOR LOW —
Continued
Symptom:
P0108-MAP SENSOR HIGH
When Monitored and Set Condition:
P0108-MAP SENSOR 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 volts
Set Condition:
The MAP sensor signal voltage is greater than 4.92 volts. One trip Fault.
POSSIBLE CAUSES
MAP SENSOR VOLTAGE ABOVE 4.9 VOLTS
(K1) MAP SIGNAL CIRCUIT SHORTED TO (K6) 5 VOLT SUPPLY CIRCUIT
(K1) MAP SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
MAP SENSOR INTERNAL FAILURE
(K1) MAP SIGNAL CIRCUIT OPEN
(K4) SENSOR GROUND CIRCUIT OPEN
PCM
TEST
ACTION
APPLICABILITY
1
Start the engine.
With the DRBIII
t, read the MAP Sensor voltage.
Is the voltage above 4.9 volts?
All
Yes
→ Go To 2
No
→ Refer to the INTERMITTENT CONDITION symptom in the
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
2
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between the (K1) MAP Signal circuit and the (K6) 5 Volt
Supply circuit in the MAP Sensor harness connector.
Is the resistance below 100 ohms?
All
Yes
→ Repair the (K1) MAP Signal circuit for a short to the (K6) 5 Volt
Supply circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
No
→ Go To 3
253
DRIVEABILITY - NGC
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Ignition on, engine not running.
Measure the voltage of the (K1) MAP Signal circuit in the MAP Sensor harness
connector.
Is the voltage above 5.2 volts?
All
Yes
→ Repair the short to battery voltage in the (K1) MAP Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
No
→ Go To 4
4
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Connect a jumper wire between the (K1) MAP Sensor Signal circuit and the (K4)
Sensor ground circuit.
With the DRBIII
t, monitor the MAP Sensor voltage.
Ignition on, engine not running.
Is the voltage below 1.0 volt?
All
Yes
→ Replace the MAP Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
No
→ Go To 5
5
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the (K1) MAP Signal circuit from the MAP Sensor harness
connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 6
No
→ Repair the open in the (K1) MAP Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
6
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the (K4) Sensor ground circuit from the MAP Sensor
harness connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 7
No
→ Repair the open in the (K4) Sensor ground circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
254
DRIVEABILITY - NGC
P0108-MAP SENSOR HIGH —
Continued
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