Specifications

TEST ACTION APPLICABILITY
8 Turn the ignition off.
Remove the CMP Sensor.
Inspect the CMP Sensor for conditions such as loose mounting screws, damage, or
cracks.
Inspect the camshaft for conditions such as damage, debris or cracked teeth.
Is there any evidence of these conditions?
All
Yes → Repair as necessary.
Perform ROAD TEST VERIFICATION - VER-2.
No → Go To 9
9 Turn the ignition off.
With the DRBIIIt lab scope lead, backprobe the CMP Signal circuit.
Set the DRBIIIt lab scope settings as follows: Time = 0.2s/Div, 20 volts scale, Offset
= 0.00 volts, Probe = X10, Coupling = DC.
While observing the DRBIIIt display, crank the engine.
NOTE: The DRBIIIt should display a digital signal (square wave) similar to
that shown in Charts and Graphs.
Does the DRBIIIt display an uninterrupted digital signal (square wave)?
All
Yes → Replace and program the Engine Control Module in accordance
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
No → Replace the Camshaft Position Sensor in accordance with the
Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
10 Turn the ignition off.
Disconnect the ECM harness connectors.
Disconnect the CMP Sensor harness connector.
Measure the resistance of the 5-Volt Supply circuit between the ECM harness
connector and the CMP Sensor harness connector.
Is the resistance below 10.0 ohms?
All
Yes → Go To 11
No → Repair the 5-Volt Supply circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
11 Turn the ignition off.
Disconnect the CMP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance between ground and the CMP Sensor 5-Volt Supply circuit.
Is the resistance above 1000 ohms?
All
Yes → Go To 12
No → Repair the CMPSensor 5-Volt Supply circuit for ashort to ground.
Perform ROAD TEST VERIFICATION - VER-2.
143
DRIVEABILITY - DIESEL
P2043-CAMSHAFT POSITION SENSOR CIRCUIT OPEN CIRCUIT —
Continued