Lexus NX: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Adaptive Variable Suspension System

DTC No.

Detection Item

Warning Indicate

Link

C1715

Front Acceleration Sensor RH Malfunction

Does not come on

C1716

Front Acceleration Sensor LH Malfunction

Does not come on

C1717

Rear Acceleration Sensor Malfunction

Does not come on

C1731

Front Damping Force Control Actuator RH Circuit Malfunction

Does not come on

C1732

Front Damping Force Control Actuator LH Circuit Malfunction

Does not come on

C1733

Rear Damping Force Control Actuator RH Circuit Malfunction

Does not come on

C1734

Rear Damping Force Control Actuator LH Circuit Malfunction

Does not come on

C1781

Suspension Control ECU Malfunction

Does not come on

C1782

Power Source Voltage Malfunction

Does not come on

C1783

Speed Signal Communication Error

Does not come on

C1784

Steering Angle Sensor Communication Error

Does not come on

C1786

Master Cylinder Pressure Circuit

Does not come on

C1789

Vehicle Identification Malfunction

Does not come on

C1796

Front Acceleration Sensor RH Malfunction (Test Mode DTC)

Test mode

C1797

Front Acceleration Sensor LH Malfunction (Test Mode DTC)

Test mode

C1798

Rear Acceleration Sensor Malfunction (Test Mode DTC)

Test mode

U0101

Lost Communication With TCM

Does not come on

U0122

Lost Communication with Vehicle Dynamics Control Module

Does not come on

U0124

Lost Communication with Lateral Acceleration Sensor Module

Does not come on

U0126

Lost Communication with Steering Angle Sensor Module

Does not come on

U0293

Lost Communication with Hybrid Vehicle Control System

Does not come on

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 Front Acceleration Sensor RH Malfunction (C1715-C1717,C1796-C1798)

DESCRIPTION The acceleration sensor assembly (up and down G sensor) detects the upward and downward acceleration of the vehicle and outputs it as a voltage to the absorber control ECU. Up and down G s

 Front Damping Force Control Actuator RH Circuit Malfunction (C1731-C1734)

DESCRIPTION The absorber control actuator changes the damping force depending on absorber control ECU signals. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate

 Suspension Control ECU Malfunction (C1781)

DESCRIPTION If a malfunction in the absorber control ECU is detected, DTC C1781 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate C1781 Suspensio

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 Inspection

INSPECTION PROCEDURE 1. INSPECT NO. 1 FOLD SEAT SWITCH ASSEMBLY (for Front Side) (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Switch Condition Specified Condition 1 (HRSR) - 7 (E) RETURN RH switch pressed Below 1 Î

 Precaution

PRECAUTION ADAPTIVE VARIABLE SUSPENSION SYSTEM PRECAUTION NOTICE: Performing work after replacing the absorber control ECU with a normally functioning one from another vehicle may result in DTCs being stored, or have a negative effect on other systems. When replacing the absorber control ECU, be

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