FAIL-SAFE CHART
MALFUNCTION DETECTION
(a) Operation when malfunction is detected
| Content | Operation | |
|---|---|---|
| Heater failure | Overcurrent detection of drive element | Heater output off |
| Overheating detection of drive element | Heater output off | |
| Power failure | Low-voltage detection | Heater output off |
| Over-voltage detection | Heater output off | |
| Heater OFF timer | 30 minutes after heated steering wheel system is turned on | Heater output off |
(b) Malfunction detection conditions
(1) When an open or short in the steering wheel heater unit thermistor continues for 2 seconds or more.
(2) When the steering heater switch is pressed continuously for 10 seconds or more.
How To Proceed With TroubleshootingLexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Meter / Gauge System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the meter / gauge system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS
NEXT 3. INSPECT BATTERY VOLTAGE ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Road Sign Assist System: Parts Location
PARTS LOCATION ILLUSTRATION *1 MILLIMETER WAVE RADAR SENSOR ASSEMBLY *2 FORWARD RECOGNITION CAMERA *3 SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) *4 ECM ILLUSTRATION *A for TFT Meter Type *B for Optitron Meter Type *1 COMBINATION METER ASSEMBLY *2 MAIN BODY ...