Lexus NX: Diagnostic Trouble Code Chart
Lexus NX Service Manual / Steering / Steering Column / Steering Lock System / Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Steering Lock System| DTC No. | Detection Item | Link |
|---|---|---|
| B2781 | Open / Short in Steering Lock ECU | |
| B2782 | Power Source Control ECU Malfunction | |
| B2788 | IG2 Signal Malfunction | |
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Open / Short in Steering Lock ECU (B2781)
DESCRIPTION The steering lock ECU and steering lock motor are built into the steering lock actuator assembly. The steering lock ECU (steering lock actuator assembly) detects whether the steering lock
Power Source Control ECU Malfunction (B2782)
DESCRIPTION The certification ECU (smart key ECU assembly) has a power source mode switching function. This DTC is stored when the IGE input (the steering lock motor activation permission signal) sent
IG2 Signal Malfunction (B2788)
DESCRIPTION This DTC is stored when the steering lock ECU (steering lock actuator assembly) detects an IG2 power supply malfunction. HINT: The steering lock ECU (steering lock actuator assembly) is no
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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 Suspension Control ECU Malfunction Either condition is met:
A nonvolatile memory write or read error occ
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use these procedures to troubleshoot the power steering system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. INSPECT AUXILIARY BATTERY VOLTAGE (a) Measure the voltage of the auxiliary battery. Standar
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