Diagnostic Test

ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)
NOTE:
When this DTC is Active the engine speed, torque and vehicle speed are limited to a Limp in mode.

NOTE:
If a 5 Volt supply DTC has also set, diagnose the 5 volt DTC before continuing.

NOTE:
If P2101 is also set, then make sure that the blade moves freely and does not hang up near Wide Open Throttle, by performing the Throttle Follower Test before trying to repair P0222.
1. Ignition on, engine not running.
2. Using the scan tool, read the active DTCs.
  Is the DTC Active at this time?
  
  Yes
  - Go To 2
  No
  - Go To 11
P0122 ALSO SET
Was the P0122-TP SENSOR NO. 1 VOLTAGE LOW DTC set along with the P0222?

Yes
- Go To 3
No
- Go To 4
(F855) 5-VOLT SUPPLY CIRCUIT

Fig 1: Checking 5 Volt Supply Circuit Voltage
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Throttle Body harness connector.
3. Ignition on, engine not running.
4. Measure the voltage on the (F855) 5-volt Supply circuit in the Throttle Body harness connector.
  Is the voltage between 4.8 to 5.2 volts?
  
  Yes
  - Go To 4
  No
  - Go To 8
THROTTLE POSITION SENSOR
1. Connect a jumper wire between the (F855) 5-volt Supply circuit and the (K122) TP Sensor No. 2 Signal circuit in the Throttle Body harness connector.
2. Using the scan tool, monitor the TP Sensor No. 2 voltage.
  Is the voltage between 4.8 and 5.2 volts with the jumper wire installed?
  
  Yes
  - Verify that there is good pin to terminal contact in the Throttle Body and Powertrain Control Module connectors. If OK, disconnect the Battery when replacing the Throttle Body Assembly. Replace the Throttle Body Assembly. After installation is complete, with a scan tool select the ETC RELEARN function.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 5
    NOTE:
    Remove the jumper wire before continuing.
(K122) TP SENSOR NO. 2 SIGNAL CIRCUIT OPEN

Fig 2: Checking TP Sensor No. 2 Signal Circuit For Open
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the PCM C2 harness connector.
3. Measure the resistance of the (K122) TP Sensor No. 2 Signal circuit from the Throttle Body harness connector to the PCM C2 harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 6
  No
  - Repair the open in the (K122) TP Sensor No. 2 Signal circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
(K122) TP SENSOR NO. 2 SIGNAL CIRCUIT SHORTED TO GROUND

Fig 3: Checking TP Sensor No. 2 Signal Circuit For Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance between ground and the (K122) TP Sensor No. 2 Signal circuit at the Throttle Body harness connector.
  Is the resistance below 100 Ohms?
  
  Yes
  - Repair the short to ground in the (K122) TP Sensor No. 2 Signal.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 7
(K122) TP SENSOR NO. 2 SIGNAL CIRCUIT SHORTED TO THE (K922) TP SENSOR RETURN CIRCUIT

Fig 4: Checking TP Sensor No. 2 Signal Circuit For Short To TP Sensor Return Circuit
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance between the (K122) TP Sensor No. 2 Signal circuit and the (K922) TP Sensor Return circuit at the Throttle Body harness connector.
  Is the resistance below 100 Ohms?
  
  Yes
  - Repair the short between the (K922) TP Sensor Return circuit and the (K122) TP Sensor No. 2 Signal circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 10
(F855) 5-VOLT SUPPLY CIRCUIT OPEN

Fig 5: Checking 5 Volt Supply Circuit For An Open
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the PCM C2 harness connector.
3. Measure the resistance of the (F855) 5-volt Supply circuit from the Throttle Body harness connector to the PCM C2 harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 9
  No
  - Repair the open in the (F855) 5-volt Supply circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
(F855) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND

Fig 6: Checking 5-Volt Supply Circuit For Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance between ground and the (F855) 5-volt Supply circuit at the Throttle Body harness connector.
  Is the resistance below 100 Ohms?
  
  Yes
  - Repair the short to ground in the (F855) 5-volt Supply circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 10
POWERTRAIN CONTROL MODULE (PCM)
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between 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 Technical 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 program the Powertrain Control Module in accordance with the service information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
THROTTLE FOLLOWER TEST
1. Ignition on, engine not running.
2. Using the scan tool, perform the ETC Throttle Follower Test.
3. Monitor the TP Sensor No. 2 voltage while slowly pressing the Throttle pedal down.
  Is there a smooth voltage change from approximately 4.3 volts and decrease to approximately 0.7 volt?
  
  Yes
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
  No
  - Verify that there is good pin to terminal contact in the Throttle Body and Powertrain Control Module connectors. If OK, disconnect the Battery when replacing the Throttle Body Assembly. Replace the Throttle Body Assembly. After installation is complete, with a scan tool select the ETC RELEARN function.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .