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DRIVEABILITY - DIESEL
P0340-CMP/CKP POSITION SENSOR CIRCUIT - CKP DYNAMIC PLAUSI -
BILITY —
Continued
TEST
2
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
With the engine running at normal operating temperature, monitor the DRB
parameters related to the DTC while wiggling the wiring harness. Look for param-
eter values to change and/or a DTC to set.
Review the DTC When Monitored and Set Conditions. If possible, try to duplicate the
conditions under which the DTC was set.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Were any of the above conditions present?
Yes → Repair as necessary.
→ Test Complete.
No
3
Turn the ignition off.
Disconnect the CKP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance between ground and the both of the CKP Sensor Signal
circuits.
Is the resistance above 1000 ohms for both measurements?
Yes → Go To 4
→ Repair the CKP Sensor Signal circuit(s) for a short to ground.
No
4
Turn the ignition off.
Disconnect the CKP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance between the CKP Sensor Signal circuits.
Is the resistance above 1000 ohms?
Yes → Go To 5
→ Repair the CKP Sensor Signal circuits for a short together.
No
5
Turn the ignition off.
Disconnect the CKP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance of CKP Sensor Signal circuits.
Is the resistance below 10.0 ohms for both measurements?
Yes → Go To 6
→ Repair the CKP Sensor Signal circuit(s) for an open.
No
ACTION
Perform ROAD TEST VERIFICATION - VER-2.
Perform ROAD TEST VERIFICATION - VER-2.
Perform ROAD TEST VERIFICATION - VER-2.
Perform ROAD TEST VERIFICATION - VER-2.
72
APPLICABILITY
All
All
All
All
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