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U0102 on Acura Integra

Lost Communication with Transfer Case Control Module (TCCM)

Factory diagnostic protocol and troubleshooting wire for fault code U0102 specifically for the Acura Integra (2023–2026, 1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP)).

Verified OEM Telemetry & Field Repair Tree
Acura Integra2023–2026
Acura Integra
Sedan1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Integra SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
Medium urgency level
Est. Repair Cost
$150 - $650 (DIY: $50 - $220)
Parts & Labor DIY
Check U0102 On Another Acura Model:
Diagnose U0102 on Specific Integra Model Year:

1. Symptoms of U0102 on Acura Integra

When the Engine Control Module (ECM/PCM) on your Acura Integra (1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP)) logs fault code U0102, drivers commonly observe:

'Service 4WD' or '4WD System Error' message on dash on Acura Integra (1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP))
4WD selector switch unresponsive (lights out on switch) on Acura Integra (1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP))
Vehicle stuck in 2WD or last selected 4WD mode on Acura Integra (1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP))
Acura Integra OBD-II Port Location
The 16-pin diagnostic connector is located Under driver dash, right of steering column. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Acura Integra

Historical warranty claims and technical repair bulletins for Acura Integra point to the following failure distribution:

55%
Corroded TCCM power/ground wiring under vehicle (Acura OEM Part)
25%
Blown 4WD / TCCM fuse in engine fuse panel (Acura OEM Part)
12%
Faulty Transfer Case Control Module (Acura OEM Part)
8%
Faulty transfer case shift encoder motor (Acura OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Acura Integra.

3. Step-by-Step DIY Repair Guide for Acura Integra

01
Check 4WD / TCCM Fuses

Inspect ATC / 4WD fuses with test light. on the Acura Integra equipped with 1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP).

Required Tool: Test Light
02
Inspect TCCM Connector

Check module under driver dash or seat for water intrusion. on the Acura Integra equipped with 1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP).

Required Tool: Flashlight
03
Test CAN Bus Wires at TCCM

Verify 2.5V CAN signals reach the module. on the Acura Integra equipped with 1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP).

Required Tool: Multimeter
04
Replace TCCM & Clear Codes

Install replacement module and clear trouble codes. on the Acura Integra equipped with 1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP).

Required Tool: Socket Set, Scan Tool
Recommended Parts & Testing Tools

Equipment for Diagnosing Acura Integra (U0102)

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Direct-Fit Replacement Part

Acura Integra OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for Acura Integra.

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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
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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 Acura IntegraVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
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Other Common Fault Codes on Acura Integra

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Acura Integra:

4. Acura Integra U0102 FAQs

What causes code U0102 to trigger on a Acura Integra?

On the Acura Integra (1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP)), U0102 is most frequently caused by Corroded TCCM power/ground wiring under vehicle or Blown 4WD / TCCM fuse in engine fuse panel.

Where is the OBD-II port located on my Acura Integra?

On the Acura Integra, the 16-pin DLC diagnostic connector is located Under driver dash, right of steering column. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Acura Integra with code U0102?

Yes, in 2WD. 4WD and Auto 4x4 functions will be inoperative. Given that U0102 carries a Medium severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.