Lexus ES manuals

Lexus ES: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Vehicle Proximity Notification System

DTC No.

Detection Item

Link

B1350

Speaker Circuit

U0129

Lost Communication with Brake System Control Module

U0140

Lost Communication with Body Control Module

U0293

Lost Communication with Hybrid/EV Powertrain Control Module

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 Speaker Circuit (B1350)

DESCRIPTION The vehicle approaching speaker assembly circuit consists of the vehicle approaching speaker controller and vehicle approaching speaker assembly. This DTC is stored when a malfunction is d

 Lost Communication with Brake System Control Module (U0129,U0140,U0293)

DESCRIPTION These DTCs are stored when the CAN communication system is malfunctioning. DTC No. Detection Item DTC Detection Condition Trouble Area U0129 Lost Communication with Brake Sy

 There is No Sound Made

DESCRIPTION Based on signals received from each ECU, the vehicle approaching speaker controller outputs warning sounds through the vehicle approaching speaker assembly. WIRING DIAGRAM CAUTION / NOTIC

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 Check Bus 2 Lines for Short Circuit

DESCRIPTION There may be a short circuit between the CAN main bus lines and/or CAN branch lines when the resistance between terminals 18 (CA4H) and 17 (CA4L) of the central gateway ECU (network gateway ECU) is below 54 Ω. Symptom Trouble Area Resistance between terminals 18 (CA4H) and 17 (

 Open in One Side of Bus 3 Branch Line

DESCRIPTION When the CAN bus main lines are normal (no open, short to ground, short to +B or short between lines) and there is an ECU or sensor on the "Communication Bus Check" screen that is indicated as not communicating or whose connection status on the "Communication Bus Check" screen changes in

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