Chrysler 300M 2002 Service Manual page 2497

DRIVEABILITY - NGC
P0116-ENGINE COOLANT TEMPERATURE PERFORMANCE —
TEST
7 Disconnect the ECT Sensor harness connector.
Turn the ignition off.
Disconnect the PCM harness connector.
Measure the resistance between chassis ground and the ECT Sensor Signal circuit in
the ECT Sensor harness connector.
Is the resistance below 100 ohms?
Yes → Repair the short to ground in the ECT Sensor Signal circuit.
→ Go To 8
No
8 Turn the ignition off.
Disconnect the ECT Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between the ECT Sensor Signal circuit and the Sensor
ground circuit at the ECT Sensor harness connector.
Is the resistance below 5.0 ohms?
Yes → Repair the short to Sensor ground in the ECT Sensor Signal
→ NOTE: Before continuing, check the PCM harness connector
No
9 NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
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.
With the engine running at normal operating temperature, monitor the DRB
parameters related to the DTC while wiggling the wire harness. Look for parameter
values to change and/or a DTC to set.
Review the DRB Freeze Frame information. 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 wire harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wire 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
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5.
circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
terminals for corrosion, damage, or terminal push out. Repair as
necessary. Replace and program the Powertrain Control Module
in accordance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
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Continued
APPLICABILITY
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