Chrysler 2005 Crossfire SRT6 Service Manual page 2043

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(P0128) THERMOSTAT RATIONALITY (CONTINUED)
6.
ECT SENSOR OPERATION
WARNING: MAKE SURE THE ENGINE COOLING SYSTEM IS
COOL BEFORE REMOVING THE PRESSURE CAP OR ANY HOSE.
SEVERE PERSONAL INJURY MAY RESULT FROM ESCAPING HOT
COOLANT. THE COOLING SYSTEM IS PRESSURIZED WHEN HOT.
With the ignition on.
With the DRB III , read and record the ENG COOLANT TEMP value
Using the DRB Temperature Probe #CH7050, measure the engine
coolant temperature.
Is the ENG COOLANT TEMP value within 3°C (5°F) of the tem-
perature probe reading?
Yes >> Go To 7
No >> Go To 8
7.
OTHER POSSIBLE CAUSES
Inspect the Temperature sensors for any physical damage.
Inspect the engine coolant. Ensure the coolant is at the proper level. (Refer to 7 - COOLING/ENGINE/COOLANT -
STANDARD PROCEDURE).
Ensure the Temperature sensors are properly mounted.
Ensure the CMP and CKP sensors are mounted properly. Check the connectors for any signs of damage.
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.
Refer to any Technical Service Bulletins (TSBs) that may apply.
With the engine running at normal operating temperature, monitor the Temperature sensor parameters while wig-
gling the wire harness. Look for parameter values to change.
Visually inspect the related wire harness. Look for any chafed, pierced, pinched, partially broken wires and broken,
bent, pushed out, or corroded terminals.
Inspect and clean all PCM, engine, and chassis grounds.
Were any problems found during the above inspections?
Yes >> Repair as necessary.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
No >> Go To 15
ENGINE - ELECTRICAL DIAGNOSTICS 9 - 119