Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSDODGE AND RAM2011JOURNEY R/T, AWDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTINFOTAINMENTRADIO FREQUENCY MODULE (RF HUB) - ELECTRICAL DIAGNOSTICSDTC TROUBLESHOOTINGB1A7D-01-START BUTTON - GENERAL ELECTRICAL FAILUREDIAGNOSTIC TEST

2011 Dodge and Ram Journey R/T, AWD

Diagnostic Test

2011 Dodge and Ram Journey R/T, AWDSECTION Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. Using the scan tool, record and erase the DTCs.
2. Turn the ignition to the Lock position.
3. Try to start the engine and allow to run for 30 seconds.
4. Turn the ignition off and then back on.
5. Using the scan tool, read the active DTCs.
  Does the scan tool display; B1A7D-01-START BUTTON - GENERAL ELECTRICAL FAILURE?
  
  Yes
  - Go To 2.
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and poor pin fit.
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
CHECK THE (D122) SECURITY K LINE COMMUNICATION CIRCUIT

Fig 1: Measuring Voltage Between Ground & Security K Line Communication Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Keyless Ignition Node harness connector.
3. Measure the voltage between ground and the (D122) Security K Line Communication circuit.
  Is the voltage above 12.0 volts?
  
  Yes
  - Go To 3.
  No
  - Repair the open in the (D122) Security K Line Communication circuit.
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
(G201) IGNITION SWITCH POSITION SIGNAL SHORTED TO GROUND

Fig 2: Checking Ignition Switch Position Signal For Short To Ground
Courtesy of CHRYSLER LLC
1. Measure the resistance between ground and the (G201) Ignition Switch Position Signal circuit.
  Is the resistance below 1500 Ohms?
  
  Yes
  - Repair the short to ground in the (G201) Ignition Switch Position Signal circuit.
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
  No
  - Go To 4.
(G201) IGNITION SWITCH POSITION SIGNAL SHORTED TO BATTERY

Fig 3: Measuring Voltage Between Ground & Ignition Switch Position Signal Circuit
Courtesy of CHRYSLER LLC
1. Measure the voltage between ground and the (G201) Ignition Switch Position Signal circuit.
  Is there any voltage present?
  
  Yes
  - Repair the short to voltage in the (G201) Ignition Switch Position Signal circuit.
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
  No
  - Replace the Keyless Ignition Node (KIN) in accordance with the Service Information. Refer to RECEIVER, KEYLESS IGNITION NODE, REMOVAL .
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.