SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSDODGE AND RAM2024PROMASTER 3500 BASE, CUTAWAYREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 40 (BRAKE SYSTEM CONTROL MODULE (BSCM) - DTCS C2112-00 TO U0140-00)DTC TROUBLESHOOTINGP2534-00 IGNITION SWITCH ON/START POSITION CIRCUIT LOWDIAGNOSTIC TEST
2024 Dodge and Ram ProMaster 3500 Base, Cutaway

Diagnostic Test

2024 Dodge and Ram ProMaster 3500 Base, CutawaySECTION Diagnostic Test
WARNING: This page is about a different car, the 2024 RAM ProMaster EV. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR AN ACTIVE DTC 
    NOTE:

    This DTC must be active for the results of this test to be valid. 

    1. Perform any Service Bulletins that may apply.
    2. Turn the ignition on.
    3. For future reference, with the scan tool, run and save a vehicle Scan Report and all related recorded data.
    4. With the scan tool, read DTCs and record on the repair order.
    5. With the scan tool, read and record Environmental Data to help identify the conditions in which the DTC was set.
    6. With the scan tool, erase all DTCs.
    7. Cycle the ignition from off to on.
    8. With the scan tool, read BSCM DTCs.

      Did the DTC return?

      Yes 

      • Go To Next Step.

      No 

  2. CHECK FOR BODY CONTROL MODULE (BCM) DTCS 
    1. Refer to the recorded DTCs.

      Are there any BCM DTCs present?

      Yes 

      No 

      • Go To Next Step.
  3. CHECK FOR POWERTRAIN CONTROL MODULE (PCM) DTCS 
    1. Refer to the recorded DTCs.

      Are there any PCM DTCs present?

      Yes 

      • Perform the applicable diagnostic procedure(s). Refer to the appropriate Diagnostic Information .

      No 

      • Go To Next Step.
  4. CHECK THE FUSES FOR POWER 
    1. Turn the ignition on.
    2. Using a 12-volt test light connected to ground, check the F23 (10A) F86 (50A) and F88 (50A) fuses for power.

      Are the fuses good?

      Yes 

      • Go To Next Step.

      No 

      • If the fuses are open, check the related circuits for a short to ground. Note:  Use the wiring diagram as a guide to follow the path of the circuit.
      • Perform the BSCM VERIFICATION TEST. Refer to BSCM VERIFICATION TEST .
  5. ISOLATE AND CHECK THE (F942) FUSED IGNITION CIRCUIT FOR AN OPEN/HIGH RESISTANCE BY LOAD TESTING THE CIRCUIT 
    1. Disconnect the component harness connector to isolate the 12.0 volt supply circuit.
    2. Connect the positive lead of the load test tool to the Fused Ignition circuit at the component harness connector (A). Note:  refer to the diagram below.
    3. Connect the negative lead of the load test tool to the ground circuit of the Battery or a good chassis ground.
    4. Make sure that the circuit being tested is being powered on. If the 12.0 volt circuit being tested is an ignition feed for example, the ignition must be on. If testing an output from a relay, verify that the relay is energized and on.
    5. The bulb on the load test tool should be illuminated and bright if there is no resistance in the circuitry.
      NOTE:

      Why load test a circuit? A load test is used to determine if a circuit is capable of carrying the amperage needed to perform properly. The 3156 bulb in the load tool illustrated, is a simple but effective method of testing circuit functionality. A 3156 Bulb has approximately 6.0 Ohms of resistance when the bulb is powered and draws approximately 2.0 amps of current. Read the CIRCUIT LOAD TESTING PROCEDURE for information on building a simple load test tool and for additional load testing information and alternative methods of load testing or voltage drop testing a circuit. Refer to  CIRCUIT LOAD TESTING PROCEDURES  . 

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.