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U0104 on Tesla Cybertruck

Lost Communication with Cruise Control Module

Factory diagnostic protocol and troubleshooting wire for fault code U0104 specifically for the Tesla Cybertruck (2024–2026, 800V Architecture / Dual Motor AWD (600HP) / Cyberbeast Tri-Motor (845HP)).

Verified OEM Telemetry & Field Repair Tree
Tesla Cybertruck2024–2026
Tesla Cybertruck
EV800V Architecture / Dual Motor AWD (600HP) / Cyberbeast Tri-Motor (845HP)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Cybertruck SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Not Recommended
Low urgency level
Est. Repair Cost
$100 - $450 (DIY: $0 - $150)
Parts & Labor DIY
Check U0104 On Another Tesla Model:
Diagnose U0104 on Specific Cybertruck Model Year:

1. Symptoms of U0104 on Tesla Cybertruck

When the Engine Control Module (ECM/PCM) on your Tesla Cybertruck (800V Architecture / Dual Motor AWD (600HP) / Cyberbeast Tri-Motor (845HP)) logs fault code U0104, drivers commonly observe:

Adaptive Cruise Control (ACC) disabled on Tesla Cybertruck (800V Architecture / Dual Motor AWD (600HP) / Cyberbeast Tri-Motor (845HP))
Pre-Collision System warning light on on Tesla Cybertruck (800V Architecture / Dual Motor AWD (600HP) / Cyberbeast Tri-Motor (845HP))
Check Engine Light on on Tesla Cybertruck (800V Architecture / Dual Motor AWD (600HP) / Cyberbeast Tri-Motor (845HP))
Tesla Cybertruck OBD-II Port Location
The 16-pin diagnostic connector is located Driver footwell lower bulkhead interface. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Tesla Cybertruck

Historical warranty claims and technical repair bulletins for Tesla Cybertruck point to the following failure distribution:

55%
Blocked or dirty front radar sensor in grille/bumper (Tesla OEM Part)
25%
Blown radar module fuse (Tesla OEM Part)
12%
Faulty radar cruise control module (Tesla OEM Part)
8%
Misaligned radar sensor following minor bumper bump (Tesla OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Tesla Cybertruck.

3. Step-by-Step DIY Repair Guide for Tesla Cybertruck

01
Clean Front Radar Sensor in Grille

Clean snow, ice, mud, or dead bugs off front radar emblem. on the Tesla Cybertruck equipped with 800V Architecture / Dual Motor AWD (600HP) / Cyberbeast Tri-Motor (845HP).

Required Tool: Microfiber Towel
02
Check ACC / Radar Fuse

Verify power feed to radar sensor. on the Tesla Cybertruck equipped with 800V Architecture / Dual Motor AWD (600HP) / Cyberbeast Tri-Motor (845HP).

Required Tool: Test Light
03
Perform Radar Aiming Calibration

Execute optical/radar alignment procedure if bumper was removed. on the Tesla Cybertruck equipped with 800V Architecture / Dual Motor AWD (600HP) / Cyberbeast Tri-Motor (845HP).

Required Tool: Calibration Target, Scan Tool
04
Clear Trouble Codes

Clear DTCs and test cruise on highway. on the Tesla Cybertruck equipped with 800V Architecture / Dual Motor AWD (600HP) / Cyberbeast Tri-Motor (845HP).

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Tesla Cybertruck (U0104)

Prime Fast Delivery & Verified Fitment
Direct-Fit Replacement Part

Tesla Cybertruck OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for Tesla Cybertruck.

$45 – $95 Prime
Check Fitment on Amazon
Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

$29.99 Prime
View on Amazon
Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

Compare OEM & Aftermarket Replacement Sensors for Tesla CybertruckVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
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Other Common Fault Codes on Tesla Cybertruck

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Tesla Cybertruck:

4. Tesla Cybertruck U0104 FAQs

What causes code U0104 to trigger on a Tesla Cybertruck?

On the Tesla Cybertruck (800V Architecture / Dual Motor AWD (600HP) / Cyberbeast Tri-Motor (845HP)), U0104 is most frequently caused by Blocked or dirty front radar sensor in grille/bumper or Blown radar module fuse.

Where is the OBD-II port located on my Tesla Cybertruck?

On the Tesla Cybertruck, the 16-pin DLC diagnostic connector is located Driver footwell lower bulkhead interface. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Tesla Cybertruck with code U0104?

Yes. Normal driving is unaffected, but Adaptive Cruise Control will not engage. Given that U0104 carries a Low severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.