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U0104 on Chrysler Pacifica Hybrid

Lost Communication with Cruise Control Module

Factory diagnostic protocol and troubleshooting wire for fault code U0104 specifically for the Chrysler Pacifica Hybrid (2020–2026, 3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV)).

Verified OEM Telemetry & Field Repair Tree
Chrysler Pacifica Hybrid2020–2026
Chrysler Pacifica Hybrid
Van3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Pacifica Hybrid 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 Chrysler Model:
Diagnose U0104 on Specific Pacifica Hybrid Model Year:

1. Symptoms of U0104 on Chrysler Pacifica Hybrid

When the Engine Control Module (ECM/PCM) on your Chrysler Pacifica Hybrid (3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV)) logs fault code U0104, drivers commonly observe:

Adaptive Cruise Control (ACC) disabled on Chrysler Pacifica Hybrid (3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV))
Pre-Collision System warning light on on Chrysler Pacifica Hybrid (3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV))
Check Engine Light on on Chrysler Pacifica Hybrid (3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV))
Chrysler Pacifica Hybrid OBD-II Port Location
The 16-pin diagnostic connector is located Under driver side dashboard above foot pedal assembly. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Chrysler Pacifica Hybrid

Historical warranty claims and technical repair bulletins for Chrysler Pacifica Hybrid point to the following failure distribution:

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

3. Step-by-Step DIY Repair Guide for Chrysler Pacifica Hybrid

01
Clean Front Radar Sensor in Grille

Clean snow, ice, mud, or dead bugs off front radar emblem. on the Chrysler Pacifica Hybrid equipped with 3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV).

Required Tool: Microfiber Towel
02
Check ACC / Radar Fuse

Verify power feed to radar sensor. on the Chrysler Pacifica Hybrid equipped with 3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV).

Required Tool: Test Light
03
Perform Radar Aiming Calibration

Execute optical/radar alignment procedure if bumper was removed. on the Chrysler Pacifica Hybrid equipped with 3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV).

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

Clear DTCs and test cruise on highway. on the Chrysler Pacifica Hybrid equipped with 3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV).

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

Equipment for Diagnosing Chrysler Pacifica Hybrid (U0104)

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Direct-Fit Replacement Part

Chrysler Pacifica Hybrid OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for Chrysler Pacifica Hybrid.

$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 Chrysler Pacifica HybridVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
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Other Common Fault Codes on Chrysler Pacifica Hybrid

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Chrysler Pacifica Hybrid:

4. Chrysler Pacifica Hybrid U0104 FAQs

What causes code U0104 to trigger on a Chrysler Pacifica Hybrid?

On the Chrysler Pacifica Hybrid (3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV)), 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 Chrysler Pacifica Hybrid?

On the Chrysler Pacifica Hybrid, the 16-pin DLC diagnostic connector is located Under driver side dashboard above foot pedal assembly. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Chrysler Pacifica Hybrid 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.