Chrysler 2005 Crossfire SRT6 Service Manual page 2046

9 - 122 ENGINE - ELECTRICAL DIAGNOSTICS
(P0128) THERMOSTAT RATIONALITY (CONTINUED)
13.
ECT SENSOR SIGNAL CIRCUIT SHORT TO GROUND
Turn the ignition off.
Measure the resistance between ground and the ECT Sensor Signal
circuit.
Is the resistance above 100 kohms?
Yes >> Go To 14
No >> Repair the ECT Signal circuit for a short to ground.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
14.
ECT SENSOR SIGNAL CIRCUIT SHORT TO SENSOR GROUND CIRCUIT
With the ignition off.
Measure the resistance between the Sensor Ground and the ECT
Sensor Signal circuit at the ECT Sensor harness connector.
Is the resistance above 100 kohms?
Yes >> Replace and program the Powertrain Control Module.
(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES/POWERTRAIN
REMOVAL).
Perform POWERTRAIN VERIFICATION TEST - VER 2.
No >> Repair the Sensor Ground circuit for a short to the ECT
Signal circuit.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
15.
INTERMITTENT WIRING AND CONNECTORS
The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible
intermittent condition.
Note: Check connectors — Clean/repair as necessary. Poor pin to terminal connections can set DTCs.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the
wires while checking for shorts and open circuits.
Note: Check for any Technical Service Bulletins that may apply.
Were there any problems found?
Yes >> Repair as necessary.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
No >> The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for
a possible intermittent condition.
CONTROL MODULE -
ZH