Dodge ZB 2005 Service Manual page 1220

P0320-NO CRANK REFERENCE SIGNAL AT PCM —
TEST
9 Measure the resistance between the (K24) CKP Sensor Signal circuit and the (K7)
5-volt Supply circuit at the CKP Sensor harness connector.
Is the resistance below 5.0 ohms?
Yes → Repair the short between the (K7) 5-volt Supply circuit and the
→ Go To 13
No
10 Turn the ignition off.
Disconnect the PCM harness connectors.
Ignition on, engine not running.
Measure the voltage of the (K7) 5-volt Supply circuit at the CKP Sensor harness
connector.
Is the voltage above 5.3 volts?
Yes → Repair the short to voltage in the (K7) 5-volt Supply circuit.
→ Go To 11
No
11 Turn the ignition off.
Measure the resistance of the (K7) 5-volt Supply circuit from the CKP Sensor harness
connector to the PCM harness connector.
Is the resistance below 5.0 ohms?
Yes → Go To 12
→ Repair the open in the (K7) 5-volt Supply circuit.
No
12 Measure the resistance between ground and the (K7) 5-volt Supply circuit at the CKP
Sensor harness connector.
Is the resistance below 100 ohms?
Yes → Repair the short to ground in the (K7) 5-volt Supply circuit.
→ Go To 13
No
13 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
(K24) CKP Sensor Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
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
99
Continued
APPLICABILITY
All
All
All
All
All