Lexus NX: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Airbag System
| Symptom | Suspected Area | Link |
| SRS warning light goes off after primary check, but then comes on | SRS Warning Light Circuit | |
| When power switch is turned on (IG), SRS warning light sometimes comes on after approximately 6 seconds | SRS Warning Light Circuit | |
| SRS warning light always comes on even when no DTCs are output | SRS Warning Light Circuit | |
| When power switch is turned on (IG), SRS warning light does not come on | SRS Warning Light Circuit | |
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TERMINALS OF ECU AIRBAG ECU ASSEMBLY Terminal No. Terminal Symbol Destination I58-1 P2+ Instrument panel passenger airbag assembly (Front passenger side squib 2nd step) I58-2 P2-
DIAGNOSIS SYSTEM SYMPTOM SIMULATION HINT: The most difficult case in troubleshooting is when no problem symptoms occur. In such a case, a thorough problem analysis must be carried out. A simulation of
DTC CHECK / CLEAR CHECK DTC (a) Turn the power switch off. (b) Connect the Techstream to the DLC3. (c) Turn the power switch on (IG). (d) Turn the Techstream on. (e) Enter the following menus: Body El
SEE MORE:
InspectionINSPECTION PROCEDURE 1. INSPECT COMBINATION SWITCH ASSEMBLY (BLIND SPOT MONITOR MAIN SWITCH) (a) Remove the combination switch assembly. Click here (b) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Switch Condition
TERMINALS OF ECU CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (a) Remove the main body ECU (multiplex network body ECU). Click here *1 Main Body ECU (Multiplex Network Body ECU) - - (b) Measure the voltage and resistance according to t
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