Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC
NOTE:
Maximum engine speed could be reduced while this fault is active, it just depends where the throttle gets stuck.
1. Turn the ignition on.
  NOTE:
  The PCM tests the ETC Motor by opening and closing the Throttle Plate before starting the engine. If during this test the Throttle Plate does not return to the closed position this DTC sets.
2. With the scan tool, read DTCs and record on the repair order.
  NOTE:
  Diagnose any TPS or 5-Volt Supply DTCs before continuing.
  
  Is the DTC active or pending?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
THROTTLE PLATE STUCK OPEN
1. Turn the ignition off.
  NOTE:
  The PCM tests the ETC Motor by opening and closing the Throttle Plate before starting the engine. If during this test the Throttle Plate does not return to the closed position this DTC sets.
2. Remove the Air Cleaner Assembly from the Throttle Body. Refer to BODY, AIR CLEANER, REMOVAL .
3. Check for any signs of a foreign material causing the Throttle to remain open.
4. Using a scan tool, under System Tests, perform the ETC Throttle Follower Test.
5. Have an assistant watch the throttle plate to verify it moves during the test.
  Does the Throttle Plate move?
  
  Yes
  - Go To 3
  No
  - Remove the debris if possible or replace the Throttle Body Assembly if signs of physical damage are present. Refer to THROTTLE BODY, REMOVAL . 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 POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
TPS 1 AND TPS 2 BOTH EQUAL 2.5 VOLTS
1. With a scan tool, perform the ETC Throttle Follower test while reading both TPS voltage readings.
  Are both TPS readings stuck at 2.5 volts?
  
  Yes
  - Check the TPS Signal circuits for excessive resistance, being shorted to each other, or shorted to the Sensor Return circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 4
THROTTLE BODY
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors at the Throttle Body and the Powertrain Control Module (PCM).
2. Look for any chafed, pierced, pinched, or partially broken wires.
3. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Throttle Body and Powertrain Control Module connectors.
4. Perform any Service Bulletins that may apply.
  Were there any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Replace and Throttle Body Assembly in accordance with the Service Information. Refer to THROTTLE BODY, REMOVAL .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .