Dodge Caliber. Manual - part 867

P2101-ELECTRONIC THROTTLE CONTROL MOTOR PERFORMANCE

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
With the engine running, ETC motor not in limp home mode, and TPS adaptation complete.

•

Set Condition:
The PCM detects too large of an error between the actual position of the throttle plate and the desired set
point. One trip fault. The DTC will set within 5 seconds. Three good trips to turn off the MIL ETC light is flash-
ing.

Possible Causes

INTERMITTENT DTC

LOW SYSTEM VOLTAGE

THROTTLE BODY ASSEMBLY

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).

Diagnostic Test

DTC IS ACTIVE

Ignition on, engine not running.

NOTE: If this DTC sets intermittently, it is possible that the controller is overheating in extremely hot tem-
peratures. This is considered a normal protection operation. No repair is necessary.

NOTE: Low system voltage can cause excessive current draw in very hot and cold ambient temperatures.
Make sure the battery can pass a load test before continuing. Review Freeze Frame information to deter-
mine the ambient temperature when the DTC set.
With a scan tool, select View DTCs.

Is the status Active for this DTC?

Yes

>> Go to 2

>> Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE -

DIAGNOSIS AND TESTING)

THROTTLE PLATE STICKING OR OBSTRUCTED

Turn the ignition off.

Remove the air cleaner assembly.

Check for any signs of a foreign material (ice or dirt) on the throttle plate or in the throttle bore that can cause the
throttle plate to stick.

Were any problems found?

Yes

>> Remove the debris if possible or replace the Throttle Body Assembly. Disconnect the battery when

replacing the Throttle Body Assembly. After installation is complete, use a scan tool and perform the
ETC Relearn function.

Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

>> Go to 3

ENGINE ELECTRICAL DIAGNOSTICS - GPEC

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THROTTLE PLATE NOT WITHIN DESIRED POSITION

Start the engine and allow it to reach normal operating temperature.

With a scan tool, monitor the Actual Throttle Position and Desired Throttle Position.

Is the Actual Throttle Position within 2° degrees of the Desired Throttle Position?

Yes

>> Go to 4

>> Replace the Throttle Body Assembly. Disconnect the battery when replacing the Throttle Body Assembly.

After installation is complete, use a scan tool and perform the ETC Relearn function.

Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

ELECTRONIC THROTTLE CONTROL MOTOR

Ignition on, engine not running.

With a scan tool, actuate the Electronic Throttle Control Motor and observe the movement of the throttle blade.

NOTE: It may be necessary to use a mirror to see 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 *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE -

DIAGNOSIS AND TESTING)

>> Replace the Throttle Body Assembly. Disconnect the battery when replacing the Throttle Body Assembly.

After installation is complete, use a scan tool and perform the ETC Relearn function.

Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

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ENGINE ELECTRICAL DIAGNOSTICS - GPEC

P2107-ELECTRONIC THROTTLE CONTROL MODULE PROCESSOR

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
With the 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 drivable. One trip fault. ETC light is flashing.

Possible Causes

INTERMITTENT DTC

POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING) .

Diagnostic Test

DTC IS ACTIVE

NOTE: If any other DTCs are set, they must be diagnosed and repaired before continuing this test.

NOTE: An intermittent loss of power to the PCM without performing an ETC Relearn procedure may cause
this DTC to set.

WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands
near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in
personal injury or death.
Turn the ignition on.

With the scan tool, Clear DTCs in the Powertrain Control Module (PCM).

Verify the Powertrain Control Module (PCM) is at the latest calibration (flash level). If necessary, update the Pow-
ertrain Control Module (PCM) in accordance with the Service Information.

Start the engine and allow it to reach operating temperature.

Increase engine speed by pressing the accelerator pedal. Do not exceed 3500 rpm.

Test drive the vehicle for 10 miles on a flat road surface.

With the scan tool, select View DTCs.

Is the status Active for this DTC?

Yes

>> Go to 2

>> Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE -

DIAGNOSIS AND TESTING)

POWERTRAIN CONTROL MODULE (PCM)

Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Throttle Body and
the Powertrain Control Module (PCM).

Look for any chafed, pierced, pinched, or partially broken wires.

Look for broken, bent, pushed out or corroded terminals.

Refer to any Technical Service Bulletins that may apply.

Were any problems found?

Yes

>> Repair as necessary.

Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

>> Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information.

Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

ENGINE ELECTRICAL DIAGNOSTICS - GPEC

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P2108-ELECTRONIC THROTTLE CONTROL MODULE PERFORMANCE

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
Ignition on.

•

Set Condition:
Internal PCM failure. Vehicle may exhibit an extended cranking condition, limited performance, and a rough
idle. One trip fault and the code will set within 5 seconds. ETC light is flashing.

Possible Causes

INTERMITTENT DTC

POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).

Diagnostic Test

DTC IS ACTIVE

NOTE: If any other DTCs are set, they must be diagnosed and repaired before continuing this test.

NOTE: An engine vacuum leak may cause this DTC to set. Thoroughly inspect the engine for a vacuum leak
before continuing with this test. Repair as necessary.

NOTE: An intermittent loss of power to the PCM without performing an ETC Relearn procedure may cause
this DTC to set.

With the scan tool, Clear DTCs in the Powertrain Control Module (PCM).

Verify the Powertrain Control Module (PCM) is at the latest calibration (flash level). If necessary, update the Pow-
ertrain Control Module (PCM) in accordance with the Service Information.

Start the engine and allow it to reach operating temperature.

Increase engine speed by pressing the accelerator pedal. Do not exceed 3500 rpm.

Test drive the vehicle for 10 miles on a flat road surface.

With the scan tool, select View DTCs.

Is the status Active for this DTC?

Yes

>> Go to 2

>> Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE -

DIAGNOSIS AND TESTING)

POWERTRAIN CONTROL MODULE (PCM)

Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Throttle Body and
the Powertrain Control Module (PCM).

Look for any chafed, pierced, pinched, or partially broken wires.

Look for broken, bent, pushed out or corroded terminals.

Refer to any Technical Service Bulletins that may apply.

Were any problems found?

Yes

>> Repair as necessary.

Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

>> Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information.

Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

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ENGINE ELECTRICAL DIAGNOSTICS - GPEC

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