2014 Ram 1500 5.7

[CUBS_WIN]

Got a P0222 code. Please help!!...lol.





Sent from my iPhone using Tapatalk

 

[Brandon-w]

Ok. So in the petal there is a circuit a and a circuit b. If they do not send the same signals at the same time or there is any deviation it will throw that code and limp mode you for safety reasons. You can start by ohming out your wires from the pcm to the petal make sure they aren't broken. Then if they check out good replace the Petal. I don't have any wiring for this though so that's as far as I can go.

 

[CUBS_WIN]

So replacing the gas pedal?


Sent from my iPhone using Tapatalk

 

[Brandon-w]

I'd check both signal wires from the pcm First. Could be a broken or chafed wire. Then If that checks out good replace petal.

 

[CUBS_WIN]

Ok. Thanks


Sent from my iPhone using Tapatalk

 

[crackerjack1957]

Theory of Operation

The Electronic Throttle Control (ETC) system uses two Throttle Position Sensors (TPS) to monitor the throttle blade position. TPS 1 and TPS 2 are located within the Throttle Body assembly. Each sensor has its own Signal circuit (TP 1 or TP 2). Both sensors share a 5-volt reference circuit (Supply) and a low reference circuit (Sensor Return). Processors within the Powertrain Control Module (PCM) monitor the ETC system data. Each Signal circuit provides the processors with a signal voltage proportional to throttle blade movement. The processors share and monitor data to verify that the indicated TPS calculation is correct.

When Monitored and Set Conditions

When Monitored: This diagnostic runs continuously when the following conditions are met:

• With the ignition on
• Battery voltage greater than 10.4 volts

Set Conditions:

• TPS 2 voltage is less than 0.16 volts for 0.7 seconds.

Default Actions:

• MIL is illuminated on the first trip that the diagnostic fails.
• The MIL will be turned off on the third consecutive trip that the diagnostic passes.
  
  
  
  
  
  
  
  

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 at the Throttle Body harness connector.

Is the voltage between 4.8 and 5.2 volts?

Yes

• Go To 3

No

• Repair the (F855) 5-Volt Supply circuit for an open or short to ground.
• Perform the POWERTRAIN VERIFICATION TEST. See: Verification Tests\Powertrain Verification Test.

3. CHECK THE (K122) TPS 2 SIGNAL CIRCUIT FOR AN OPEN/HIGH RESISTANCE

1. Turn the ignition off.
2. Disconnect the PCM C2 harness connector.

CAUTION:
Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the GPEC Diagnostic Adaptor to perform the diagnosis.

1. Connect the (10436).
2. Measure the resistance of the (K122) TPS 2 Signal circuit between the Throttle Body harness connector and the GPEC Adaptor.

Is the resistance below 5.0 Ohms?

Yes

• Go To 4

No

• Repair the (K122) TPS 2 Signal circuit for an open or high resistance.
• Perform the POWERTRAIN VERIFICATION TEST. See: Verification Tests\Powertrain Verification Test.

4. CHECK THE (K122) TPS 2 SIGNAL CIRCUIT FOR A SHORT TO GROUND

1. Measure the resistance between ground and the (K122) TPS 2 Signal circuit at the Throttle Body harness connector.

Is the resistance above 10k Ohms?

Yes

• Go To 5

No

• Repair the (K122) TPS 2 Signal for a short to ground.
• Perform the POWERTRAIN VERIFICATION TEST. See: Verification Tests\Powertrain Verification Test.

5. CHECK FOR THE (K122) TPS 2 SIGNAL CIRCUIT SHORTED TO THE (K922) TPS RETURN CIRCUIT

1. Measure the resistance between the (K122) TPS 2 Signal circuit and the (K922) TPS Return circuit at the Throttle Body harness connector.

Is the resistance above 10k Ohms?

Yes

• Go To 6

No

• Repair the short between the (K922) TPS Return circuit and the (K122) TPS 2 Signal circuit.
• Perform the POWERTRAIN VERIFICATION TEST. See: Verification Tests\Powertrain Verification Test.

6. THROTTLE POSITION SENSOR

1. Reconnect the PCM C2 harness connector.
2. Connect a jumper between the (F855) 5-Volt Supply circuit and the (K122) TPS 2 Signal circuit at the Throttle Body harness connector.
3. Using the scan tool, monitor the TPS 2 voltage.

Is the voltage between 4.8 and 5.2 volts with the jumper 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. See: Powertrain Management\Fuel Delivery and Air Induction\Throttle Body\Service and Repair\Throttle Body - Removal. After installation is complete, with a scan tool select the ETC RELEARN function.
• Perform the POWERTRAIN VERIFICATION TEST. See: Verification Tests\Powertrain Verification Test.

No

• Go To 7

7. 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. See: Verification Tests\Powertrain Verification Test.

No

• Replace and program the Powertrain Control Module. See: Powertrain Management\Computers and Control Systems\Engine Control Module\Service and Repair.
• Perform the POWERTRAIN VERIFICATION TEST. See: Verification Tests\Powertrain Verification Test.

8. THROTTLE FOLLOWER TEST

1. Ignition on, engine not running.
2. Using the scan tool, perform the ETC Throttle Follower Test.
3. Monitor the TPS 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 volts?

Yes

• Perform the INTERMITTENT CONDITION diagnostic procedure. See: Powertrain Management\Computers and Control Systems\Testing and Inspection\Initial Inspection and Diagnostic Overview\PCM Intermittent Condition Test.

No

 

[Brandon-w]

^^^^^^^ that's what I was talking about. Just didn't have the resources to find and share it. Thanks!

 

[crackerjack1957]

Pedal commander & similar devices can cause this issue also......if you happen to have 1 installed.