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P04602020 Model Year TelemetryLow Severity

P0460 on 2020 Cadillac CT5

Fuel Level Sensor Circuit Malfunction

Technical troubleshooting wire for fault code P0460 specifically tailored for the 2020 Cadillac CT5. Includes wiring sensor pinouts, freeze frame PID parameters, and step-by-step diagnostic tree.

2020 Engine Control Module (ECM) Specific Calibration
Cadillac CT52020 CT5
2020 Cadillac CT5
Sedan2.0L Twin-Scroll Turbo (237HP) / 3.0L Twin-Turbo V6 (CT5-V 360HP)
2020 Stats
Vehicle
2020 CT5
2.0L Twin-Scroll Turbo (237HP) / 3.0L Twin-Turbo V6 (CT5-V 360HP)
ECU Subsystem
Automotive OBD-II
SAE Mode $01 & $02
Est. Repair Cost
$150 - $700
OEM Parts & DIY
Urgency Level
Low
Drivable (Short)
Switch CT5 Model Year for P0460

Common 2020 CT5 Symptoms

  • Check Engine Light on
  • Fuel gauge fluctuates erratically
  • Inaccurate range to empty

Likely Root Causes on 2020 CT5

  • Worn resistor track on in-tank fuel sender
  • Corroded fuel pump wiring connector
  • Sulfur varnish on sender contacts

Step-by-Step Fix Protocol for 2020 Cadillac CT5

Step 1: Scan & Record Freeze Frame Data

Connect an OBD-II scanner to the DLC port under the driver dashboard. Record engine RPM, Short Term / Long Term Fuel Trim (STFT/LTFT), and engine coolant temperature at the moment P0460 set.

Step 2: Inspect Wiring Harness & Pin Voltages

Inspect the sensor connector on the 2020 CT5 engine bay. Use a multimeter to verify reference voltage (5.0V / 12.0V) and ground continuity.

Step 3: Component Replacement & PCM Reset

Replace the verified defective component using OEM or equivalent grade parts. Clear DTC P0460 and complete an EPA drive cycle to verify readiness monitors set to READY.

Recommended Parts & Testing Tools

Equipment for Diagnosing 2020 Cadillac CT5 (P0460)

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2020 Cadillac CT5 OEM Replacement Sensor

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Direct-fit replacement assembly engineered to OEM tolerances for 2020 Cadillac CT5.

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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.

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BlueDriver Bluetooth Pro OBDII Scan Tool

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

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