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C1288 on Buick Enclave

Brake Pressure Transducer Primary Input Circuit Failure

Factory diagnostic protocol and troubleshooting wire for fault code C1288 specifically for the Buick Enclave (2020–2026, 3.6L V6 (310HP) / 2.5L Turbo 4-Cyl (328HP)).

Verified OEM Telemetry & Field Repair Tree
Buick Enclave2020–2026
Buick Enclave
SUV3.6L V6 (310HP) / 2.5L Turbo 4-Cyl (328HP)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Enclave SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Not Recommended
High urgency level
Est. Repair Cost
$350 - $1,200 (DIY: $150 - $400)
Parts & Labor DIY
Check C1288 On Another Buick Model:
Diagnose C1288 on Specific Enclave Model Year:

1. Symptoms of C1288 on Buick Enclave

When the Engine Control Module (ECM/PCM) on your Buick Enclave (3.6L V6 (310HP) / 2.5L Turbo 4-Cyl (328HP)) logs fault code C1288, drivers commonly observe:

ABS and AdvanceTrac warning lights on on Buick Enclave (3.6L V6 (310HP) / 2.5L Turbo 4-Cyl (328HP))
Brake warning chime on startup on Buick Enclave (3.6L V6 (310HP) / 2.5L Turbo 4-Cyl (328HP))
No ABS anti-lock function during hard panic stops on Buick Enclave (3.6L V6 (310HP) / 2.5L Turbo 4-Cyl (328HP))
Buick Enclave OBD-II Port Location
The 16-pin diagnostic connector is located Driver lower knee bolster panel. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Buick Enclave

Historical warranty claims and technical repair bulletins for Buick Enclave point to the following failure distribution:

55%
Failed internal brake pressure transducer inside the ABS Hydraulic Control Unit (HCU) (Buick OEM Part)
25%
Corroded pins in ABS module electrical connector (Buick OEM Part)
12%
Low brake fluid level or contaminated brake fluid with moisture (Buick OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Buick Enclave.

3. Step-by-Step DIY Repair Guide for Buick Enclave

01
Check Brake Pressure Live Data

Monitor brake pressure transducer PID. It should read near 0 bar unpressed and climb smoothly to 80+ bar when pressing pedal. on the Buick Enclave equipped with 3.6L V6 (310HP) / 2.5L Turbo 4-Cyl (328HP).

Required Tool: ABS Capable Scan Tool
02
Inspect ABS Module Harness

Unplug ABS connector and check for bent pins or brake fluid contamination. on the Buick Enclave equipped with 3.6L V6 (310HP) / 2.5L Turbo 4-Cyl (328HP).

Required Tool: Flashlight
03
Replace/Rebuild ABS Hydraulic Control Unit (HCU)

Replace the ABS HCU / pump assembly or send unit to a certified rebuilder to replace the internal pressure transducer. on the Buick Enclave equipped with 3.6L V6 (310HP) / 2.5L Turbo 4-Cyl (328HP).

Required Tool: Line Wrenches, Bleeder Kit, Socket Set
04
Perform Automated ABS Brake Bleed

Run scan tool automated bleed procedure to purge air from ABS valves, then bleed all 4 calipers. on the Buick Enclave equipped with 3.6L V6 (310HP) / 2.5L Turbo 4-Cyl (328HP).

Required Tool: Scan Tool with Automated Bleed, Brake Fluid
05
Clear ABS Codes

Clear DTCs and road test to verify AdvanceTrac operation. on the Buick Enclave equipped with 3.6L V6 (310HP) / 2.5L Turbo 4-Cyl (328HP).

Required Tool: Scan Tool
Recommended Parts & Testing Tools

Equipment for Diagnosing Buick Enclave (C1288)

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Direct-Fit Replacement Part

Buick Enclave OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for Buick Enclave.

$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 Buick EnclaveVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
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Other Common Fault Codes on Buick Enclave

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Buick Enclave:

4. Buick Enclave C1288 FAQs

What causes code C1288 to trigger on a Buick Enclave?

On the Buick Enclave (3.6L V6 (310HP) / 2.5L Turbo 4-Cyl (328HP)), C1288 is most frequently caused by Failed internal brake pressure transducer inside the ABS Hydraulic Control Unit (HCU) or Corroded pins in ABS module electrical connector.

Where is the OBD-II port located on my Buick Enclave?

On the Buick Enclave, the 16-pin DLC diagnostic connector is located Driver lower knee bolster panel. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Buick Enclave with code C1288?

Caution. Normal hydraulic brakes work, but ABS, Traction Control, and AdvanceTrac are disabled. Given that C1288 carries a High severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.