Page 1228 of 5267

12.(F855) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
Measure the resistance between ground and the (F855) 5-volt Supply
circuit in the CKP Sensor harness connector.
Istheresistancebelow100ohms?
Ye s>>
Repair the short to ground in the (F855) 5-volt Supply cir-
cuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
No>>
Go To 13
13.PCM
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.
Were there any problems found?
Ye s>>
Repair as necessary.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No>>
Replace and program the Powertrain Control Module per Service Information.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
14.ERRATIC CKP SENSOR SIGNAL
Turn the ignition off.
With a lab scope probe and the Miller special tool #6801, backprobe the (K24) CKP Signal circuit in the CKP har-
ness connector.
WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands
near the pulleys, belts, or fan. Do notwear loose clothing. Failure to follow these instructions can result in
personal injury or death.
Ignition on, engine not running.
Wiggle the related wire harness and lightly tap on the Crank Position Sensor.
Observe the lab scope screen.
Look for any pulses generated by the CKP Sensor.
Allow the engine to idle.
Observe the lab scope screen.
Did the CKP Sensor generate any erratic pulses?
Ye s>>
Inspect the related wire harness and replace the Crankshaft Position Sensor if no wiring problems were
found.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No>>
Go To 15
Page 1229 of 5267
15.ERRATIC CMP SIGNAL
Turn the ignition off.
With a lab scope probe and the Miller special tool #6801, backprobe the (K44) CMP Signal circuit in the CMP
harness connector.
WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands
near the pulleys, belts, or fan. Do notwear loose clothing. Failure to follow these instructions can result in
personal injury or death.
Ignition on, engine not running.
Wiggle the related wire harness and lightly tap on the Cam Position Sensor.
Observe the lab scope screen.
Look for any pulses generated by the CMP Sensor.
Allow the engine to idle.
Observe the lab scope screen.
Did the CMP Sensor generate any pulses?
Ye s>>
Inspect the related wire harness and replace the Camshaft Position Sensorif no wiring problems were
found.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No>>
Test complete, the conditions that set this DTC are not present at this time.
Page 1230 of 5267
P0325-KNOCK SENSOR 1 CIRCUIT
For a complete wiring diagramRefer to Section 8W.
Page 1234 of 5267
P0330-KNOCK SENSOR 2 CIRCUIT
For a complete wiring diagramRefer to Section 8W.
Page 1238 of 5267
P0340-CAMSHAFT POSITION SENSOR CIRCUIT
For a complete wiring diagramRefer to Section 8W.
Page 1245 of 5267
P0352-IGNITION COIL #2 PRIMARY CIRCUIT
For a complete wiring diagramRefer to Section 8W.
Page 1249 of 5267
P0353-IGNITION COIL #3 PRIMARY CIRCUIT
For a complete wiring diagramRefer to Section 8W.
Page 1253 of 5267
P0354-IGNITION COIL #4 PRIMARY CIRCUIT
For a complete wiring diagramRefer to Section 8W.