Lexus NX: Precaution
PRECAUTION
INITIALIZATION
NOTICE:
Perform Registration (VIN registration) when replacing the ECM.
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DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL
NOTICE:
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After the power switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
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When disconnecting and reconnecting the auxiliary battery.
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HINT:
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
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WHEN USING TECHSTREAM
CAUTION:
Observe the following items for safety reasons:
- Before using the Techstream, read the instruction manual.
- Prevent the Techstream cable from being caught on the pedals, shift lever or steering wheel when driving with the Techstream connected to the vehicle.
- When driving the vehicle for testing purposes using the Techstream, 2 persons are required. One drives the vehicle, and the other operates the Techstream.
PRECAUTIONS FOR INSPECTING HYBRID CONTROL SYSTEM
(a) Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
NOTICE:
- After removing the service plug grip, turning the power switch on (READY) may cause a malfunction. Do not turn the power switch on (READY) unless instructed by the repair manual.
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After the power switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
Click here
-
When disconnecting and reconnecting the auxiliary battery.
Click here
HINT:
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
Click here
(b) After removing the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals.
HINT:
Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
NOTICE FOR HYBRID CONTROL SYSTEM ACTIVATION
(a) When the warning light is illuminated, or the auxiliary battery has been disconnected and reconnected, attempting to turn the power switch on (READY) may not start the system (the system may not enter the READY-on state) on the first attempt. If so, turn the power switch off and reattempt to start the hybrid system.
NOTICE:
-
After the power switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
Click here
-
When disconnecting and reconnecting the auxiliary battery.
Click here
HINT:
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
Click here
READ NEXT:
Definition Of Terms
DEFINITION OF TERMS Term Definition Monitor Description Description of what the ECM monitors and how it detects malfunctions (monitoring purpose and details). Related DTCs Group of di
Parts Location
PARTS LOCATION ILLUSTRATION *1 CANISTER *2 FUEL PUMP *3 MASS AIR FLOW METER SUB-ASSEMBLY *4 PURGE VSV *5 NO. 1 ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK ASSEMBLY *6 EFI-
System Diagram
SYSTEM DIAGRAM
SEE MORE:
Lost Communication with Tilt & (U1115)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from U1115 Lost Communication with Tilt & Telescopic Module There is no communication from the multiplex tilt and telescopic ECU.
Power source circuit of multiplex tilt and telescopic ECU
Terminals Of Ecu
TERMINALS OF ECU CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY, MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *1 Main Body ECU (Multiplex Network Body ECU) - - (a) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Click here (b) Co
