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

Monitor Water Quality When Servicing Coolant

The harder the water, the more likely the water pump is to develop a leak.

Chrysler/Dodge/RAM 2013-2024 All Models

Through warranty analysis and component testing, it has been confirmed that filling the vehicle cooling system with any water other than distilled water can lead to coolant leakage through the water pump mechanical seal. If “tap or well” water is added to the cooling system to dilute concentrated coolant, hard particulates and minerals that may be present in most “tap or well” water will build up between the water pump mechanical seal faces as the coolant mixture passes through the mechanical seal and evaporates by design. The harder (poorer the quality) the tap or well water, the more likely the pump is to develop a leak.

Carbon Deposit Q&A

Follow along to learn more about carbon deposits.

BMW Daytime Running Lights Are Dim

The issue is likely because the connection between the LED module & light tube inside.

Subaru PCV Hose Redesign

Always order the most up-to-date replacement parts based on the specific model.

GM No Crank/Start and Key Fob Range Problems

2007-2023 GM vehicles use Radio Frequency (RF) to transmit information.

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.

Ford 2.0L EcoBoost Rattle Noise

To correct the condition, follow the Service Procedure to replace the flexplate, transmission fluid pump & torque converter.

Beating the Tech Shortage Through Mentoring

How understanding the 80/20 Rule and creative mentoring can make the shortage less threatening.

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.