Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 1181
3.
THROTTLE POSITION WITHIN 2° DEGREES OF DESIRED THROTTLE POSITION
Start the engine.
Allow the engine to reach normal operating temperature.
With a scan tool, monitor the Actual Throttle Position and Desired Throttle Position.
Compare the Actual Throttle Position and the Set Point Throttle Position.
Is the Actual Throttle Position within 2° degrees of the Desired Throttle Position?
Yes
>> Go To 4
No
>> Replace the Throttle Body Assembly. Disconnect the Battery when replacing the Throttle Body Assem-
bly. After installation is complete, use a scan tool and select the ETC RELEARN function.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
4.
ETC OPERATION
Ignition on, engine not running.
With a scan tool, actuate the Electronic Throttle Control Motor.
NOTE: It may be necessary to use a mirror to see the throttle blade.
Observe the throttle blade.
NOTE: Make sure the motion of the throttle blade is smooth and that it opens and closes.
Did the ETC motor operate properly?
Yes
>> Refer to the INTERMITTENT CONDITION Diagnostic Procedure.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No
>> Replace the Throttle Body Assembly. Disconnect the Battery when replacing the Throttle Body Assem-
bly. After installation is complete, use a scan tool and select the ETC RELEARN function.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
9 - 748
ENGINE ELECTRICAL DIAGNOSTICS
LX
P2107-ELECTRONIC THROTTLE CONTROL MODULE PROCESSOR
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Ignition on.
•
Set Condition:
Internal PCM failure. Module will attempt to reset, so you will be able to hear the throttle relearning. If the
condition is continuous, the vehicle may not be driveable. One trip fault. ETC light is flashing.
Possible Causes
POWERTRAIN CONTROL MODULE NEEDS TO BE REPROGRAMMED
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
Diagnostic Test
1.
REPROGRAM THE POWERTRAIN CONTROL MODULE
Check for any related TSBs.
Verify the PCM is at the latest calibration (flash level).
NOTE: An intermittent loss of power to the PCM without performing an ETC Relearn procedure may cause
this DTC to set.
Flash the Powertrain Control Module per Service Information if any updates are available.
Start the engine.
Allow the engine to reach normal operating temperature.
Operate the accelerator pedal. (do not exceed 3500 rpm)
Test drive the vehicle for 10 miles on a flat road surface.
Does this DTC reset?
Yes
>> Replace and reprogram the Powertrain Control Module per Service Information.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No
>> Test Complete.
LX
ENGINE ELECTRICAL DIAGNOSTICS
9 - 749
P2108-ELECTRONIC THROTTLE CONTROL MODULE PERFORMANCE
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Ignition on.
•
Set Condition:
Internal PCM failure. Customer may experience an extended cranking condition with limited driving and a
rough idle. One trip fault and the code will set within 5 seconds. ETC light is flashing.
Possible Causes
POWERTRAIN CONTROL MODULE NEEDS TO BE REPROGRAMMED
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
Diagnostic Test
1.
REPROGRAM THE POWERTRAIN CONTROL MODULE
Check for any related TSBs.
Verify the PCM is at the latest calibration (flash level).
NOTE: Inspect the Intake Manifold components for vacuum leaks, repair as necessary
NOTE: An intermittent loss of power to the PCM without performing an ETC Relearn procedure may cause
this DTC to set.
NOTE: Diagnose any other DTCs that may have set with the P2108.
Flash the Powertrain Control Module per Service Information if any updates are available.
Start the engine.
Allow the engine to reach normal operating temperature.
Operate the accelerator pedal. (do not exceed 3500 rpm)
Test drive the vehicle for 10 miles on a flat road surface.
Does this DTC reset by itself?
Yes
>> Replace and reprogram the Powertrain Control Module per Service Information.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No
>> Test Complete.
9 - 750
ENGINE ELECTRICAL DIAGNOSTICS
LX
P2110-ELECTRONIC THROTTLE CONTROL - FORCED LIMITED RPM
For a complete wiring diagram Refer to Section 8W.
LX
ENGINE ELECTRICAL DIAGNOSTICS
9 - 751
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