Dodge ZB 2005 Service Manual page 1153

DRIVEABILITY - GAS
P0108-MAP SENSOR VOLTAGE TOO HIGH —
TEST
3 Turn the ignition off.
Disconnect the PCM harness connectors.
Ignition on, engine not running.
Measure the voltage on the (K1) MAP Sensor Signal circuit at the MAP Sensor
harness connector.
Is the voltage above 5.3 volts?
Yes → Repair the short to voltage in the (K1) MAP Sensor Signal circuit.
→ Go To 4
No
4 Turn the ignition off.
Measure the resistance of the (K1) MAP Sensor Signal circuit from the MAP Sensor
harness connector to the PCM harness connector.
Is the resistance below 5.0 ohms?
Yes → Go To 5
→ Repair the open in the (K1) MAP Sensor Signal circuit.
No
5 Measure the resistance between the (K1) MAP Sensor Signal circuit and the (K7)
5-volt Supply circuit at the MAP Sensor harness connector.
Is the resistance below 100 ohms?
Yes → Repair the short between the (K7) 5-volt Supply circuit and the
→ Go To 6
No
6 Measure the resistance of the (K900) Sensor ground circuit from the PCM harness
connector to the MAP Sensor harness connector.
Is the resistance below 100 ohms?
Yes → Go To 7
→ Repair the open in the (K900) Sensor ground circuit.
No
7 NOTE: Before continuing, check the PCM harness connector 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.
Repair
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
(K1) MAP Sensor Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Replace and program the Powertrain Control Module per Service
Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Continued
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APPLICABILITY
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