U01152016 Model Year TelemetryCritical Severity

U0115 on 2016 Lexus IS

Lost Communication with ECM/PCM B

Technical troubleshooting wire for fault code U0115 specifically tailored for the 2016 Lexus IS. Includes wiring sensor pinouts, freeze frame PID parameters, and step-by-step diagnostic tree.

2016 Engine Control Module (ECM) Specific Calibration

2016 IS

2016 Lexus IS

Sedan • 2.0L Turbo / 3.5L V6 (IS 350 311HP) / 5.0L Naturally Aspirated V8 (IS 500 472HP)

2016 Stats

Vehicle

2016 IS

2.0L Turbo / 3.5L V6 (IS 350 311HP) / 5.0L Naturally Aspirated V8 (IS 500 472HP)

ECU Subsystem

Automotive OBD-II

SAE Mode $01 & $02

Est. Repair Cost

$150 - $800

OEM Parts & DIY

Urgency Level

Critical

Tow to Shop

Switch IS Model Year for U0115

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Common 2016 IS Symptoms

Multiple warning lights
Limp mode
No start

Likely Root Causes on 2016 IS

CAN bus wire short/open
Blown ECM fuse
Faulty secondary ECM/PCM

Step-by-Step Fix Protocol for 2016 Lexus IS

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 U0115 set.

Step 2: Inspect Wiring Harness & Pin Voltages

Inspect the sensor connector on the 2016 IS 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 U0115 and complete an EPA drive cycle to verify readiness monitors set to READY.

Recommended Parts & Testing Tools