Dodge ZB 2005 Service Manual page 1266

P1296-NO 5-VOLTS TO MAP SENSOR —
TEST
4 Measure the voltage on the (K7) 5-volt Supply circuit in the MAP Sensor harness
connector while disconnecting the remaining Sensors that share the (K7) 5-volt
Supply circuit.
Does the voltage return to approximately 5.0 volts with any Sensor disconnected?
Yes → Replace the Sensor that pulled the (K7) 5-volt Supply circuit low.
→ Go To 5
No
5 Turn the ignition off.
Disconnect the PCM harness connectors.
Measure the resistance of the (K7) 5-volt Supply circuit from the MAP Sensor
harness connector to the PCM harness connector.
Is the resistance below 5.0 ohms?
Yes → Go To 6
→ Repair the excessive resistance in the (K7) 5-volt Supply circuit.
No
6 Measure the resistance between ground and the (K7) 5-volt Supply circuit in the
MAP Sensor harness connector.
Is the resistance below 100 ohms?
Yes → Repair the short to ground in the (K7) 5-volt Supply circuit.
→ Go To 7
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.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Replace and program the Powertrain Control Module per Service
Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
DRIVEABILITY - GAS
Continued
145
APPLICABILITY
All
All
All
All