Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLEXUS2006SC 430REPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTGAUGES & INSTRUMENT PANELSCOMBINATION METER - DIAGNOSTICSFAIL-SAFE TABLE
2006 Lexus SC 430
Fail-Safe Table
2006 Lexus SC 430SECTION Fail-Safe Table
WATER TEMPERATURE GAUGE:
WATER TEMPERATURE GAUGE
| Condition | Response | Recovery |
|---|---|---|
| Water temperature signal is interrupted for 5 sec. | The gauge needle indicates below "C" | Water temperature signal is received |
FUEL SIGNAL (FUEL INJECTION SIGNAL):
FUEL SIGNAL (FUEL INJECTION SIGNAL)
| Condition | Response | Recovery |
|---|---|---|
| While ignition switch is ON, fuel injection signal is interrupted for 60 sec. | Fuel warning lamp blinks, but fuel gauge operates only based on fuel sender gauge signal | Ignition switch is turned OFF once, turned ON again, and normal signal is received |
FUEL SIGNAL (GAUGE SIGNAL):
FUEL SIGNAL (GAUGE SIGNAL)
| Condition | Response | Recovery |
|---|---|---|
| While ignition switch is ON, sender gauge signal is interrupted for 60 sec., or a malfunction signal is received from one of gauges for 10 to 20 sec. | Fuel gauge indicates either E or F | Ignition switch is turned OFF once, turned ON again, and normal signal is received |
SHIFT INDICATOR:
SHIFT INDICATOR
| Condition | Response | Recovery |
|---|---|---|
| P to L signal is interrupted for 3 sec. | All indicators turn off | Normal signal is received |
ABS & BRAKE:
ABS AND BRAKE
| Condition | Response | Recovery |
|---|---|---|
| ABS & brake signal is interrupted for 10 sec. | Warning lamp turns on | Normal signal is received |
DOOR:
DOOR
| Condition | Response | Recovery |
|---|---|---|
| Door courtesy lamp switch is interrupted for 10 sec. | Door indicator indicates status based on latest signal | Normal signal is received |
TAIL:
TAIL
| Condition | Response | Recovery |
|---|---|---|
| Taillamp signal is interrupted for 10 sec. | Taillamp indicator indicates status based on latest signal | Normal signal is received |
BEAM:
BEAM
| Condition | Response | Recovery |
|---|---|---|
| Hi beam signal is interrupted for 10 sec. | The indicator turns off | Normal signal is received |
AIRBAG:
AIRBAG
| Condition | Response | Recovery |
|---|---|---|
| Airbag sensor assy center signal is interrupted for 10 sec. or there is a malfunction in meter's internal CPU | The warning lamp turns on | Normal signal is received |
DRIVE MONITOR:
DRIVE MONITOR
| Condition | Response | Recovery |
|---|---|---|
| Communication line is disabled between combination meter and drive monitor | Drive monitor display "- -" instead of calculated value | Communication line is normal |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.