Ford No Crank/ No Start

Ford No Crank/No Start

Some 2020 Transit vehicles may exhibit an open master fuse in the high current battery junction box


2020 Ford Transit

Customers may state they are experiencing one of the following issues:

  • Multiple warning lights on dash
  • No PCM communication
  • No ABS module communication
  • No crank/no start

Some 2020 Transit vehicles may exhibit an open master fuse in the high current battery junction box (Figure 1). This junction box is located just behind the battery, underneath the driver’s seat.

The master fuses were not serviceable previously, requiring the entire junction box to be replaced. The master fuses are now available as a separate service part.

For master fuses F9 (500A), F10 (300A), F11 (250A) and F12 (150A), use service part number LJ8Z-14526-C.

For master fuses F1 (125A), F2 (80A), F3 (150A) and F6 (150A), use service part number LJ8Z-14526-D.

Tighten M8 nuts to 12 +/- 1.8 Nm (106 +/- 16 lb.-in.). Tighten M5 nuts to 5.4 +/- 0.9 Nm (48 +/- 8 lb.-in.).

You May Also Like

GM Diagnostic Tip on Misfires, Noises and DTCs

Determine which description best matches the vehicle you are working on, and perform the suggestions as necessary.

Models: 2002-2023 GM V6 and V8 engines with pushrod valvetrains.

Condition: Some customers may comment on one or more of the following conditions:

Inside the Scan Tool

A look at the internal and external components that affect performance and durability.

Modern Vehicles Need Precious Metals 

Modern ignition systems require dual precious metal spark plugs capable of supplying the highest voltage outputs to date

Chrysler Steering System 

If one or more conditions from the list are confirmed to be present, refer to the detailed service procedures.

Taking the Fear out of ASE Testing

Spring registration now open; Register by June 30.

Other Posts

Ford Pro, Xcel Energy Collaborate on EV Charging Port Installation

The effort aims to install 30,000 EV charging ports by 2030 for business fleets across Xcel Energy’s service territories in the U.S.

Inspection Intervals

If you fail to inspect an item on the schedule, you could miss out on maintenance opportunities.

FORD Active Exhaust System Concerns

These concerns may be caused by an improperly seated exhaust system.

Chrysler No-Start After Being Parked

When leaving a Chrysler PT Cruiser parked for an extended period of time, it could fail to start.