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 MANUALSFORD2021TRANSIT-350 HD BASE, VAN CARGO EXTENDED, 3.5L ENG VIN 8, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 247 (STARTING SYSTEM - 6.2L V8)DIAGNOSIS AND TESTINGSTARTING SYSTEMPINPOINT TEST(S)PINPOINT TEST E : P2535 (WITHOUT PUSH BUTTON START)PINPOINT TEST E : P2535 (WITHOUT PUSH BUTTON START)
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWD
Pinpoint Test E : P2535 (Without Push Button Start)
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWDSECTION Pinpoint Test E : P2535 (Without Push Button Start)
WARNING: This page is about a different car, the 2019 Ford F-350 Super Duty and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
- E1 CHECK THE CRANK DETECT CIRCUIT FOR A SHORT TO VOLTAGE WITH THE PCM (POWERTRAIN CONTROL MODULE) DISCONNECTED
- Ignition OFF.
- Disconnect PCM C175B.
- Ignition ON.
- Measure:
Positive Lead Measurement / Action Negative Lead C175B-42 Ground
Is any voltage present?
Yes GO to E2 No GO to E4 - E2 CHECK THE CRANK DETECT CIRCUIT FOR A SHORT TO VOLTAGE WITH THE IGNITION SWITCH DISCONNECTED
- Ignition OFF.
- Disconnect Ignition switch C250.
- Ignition ON.
- Measure:
Positive Lead Measurement / Action Negative Lead C175B-42 Ground
Is any voltage present?
Yes GO to E3 No Install a new ignition switch. REFER to: Ignition Switch . - E3 CHECK THE CRANK DETECT CIRCUIT FOR A SHORT TO VOLTAGE WITH THE BCM (BODY CONTROL MODULE) DISCONNECTED
- Ignition OFF.
- Disconnect BCM C2280B.
- Ignition ON.
- Measure:
Positive Lead Measurement / Action Negative Lead C175B-42 Ground
Is any voltage present?
Yes REPAIR the circuit. No INSTALL a new BCM. REFER to: Body Control Module (BCM) . - E4 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION
- Ignition OFF.
- Disconnect and inspect all PCM connectors.
- Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
- Reconnect the PCM connectors. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, Refer to PCM Guided Routine . No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
RENDER: 1.0x
NO RELATED
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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.