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 MANUALSLEXUS2012RX 450H AWD V6-3.5L (2GR-FXE) HYBRIDREPAIR AND DIAGNOSISINSTRUMENT PANEL, GAUGES AND WARNING INDICATORSTESTING AND INSPECTIONSYMPTOM RELATED DIAGNOSTIC PROCEDURESENTIRE COMBINATION METER DOES NOT OPERATE
2012 Lexus RX 450h AWD V6-3.5L (2GR-FXE) Hybrid
Entire Combination Meter does not Operate
2012 Lexus RX 450h AWD V6-3.5L (2GR-FXE) HybridSECTION Entire Combination Meter does not Operate
METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: Entire Combination Meter does not Operate
- Entire Combination Meter does not Operate
DESCRIPTION
This circuit is the power source circuit for the meter. This circuit provides two types of power sources; one is a constant power source mainly used as a backup power source, and the other is an IG power source mainly used for signal transmission. The constant power source is mainly used as a backup power source for the meter CPU, however, it is also used for CAN communication. If a voltage of 12 V is not applied to terminal IG+ in turning the power switch on (IG), the indicators will not operate.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. INSPECT COMBINATION METER ASSEMBLY
(a) Disconnect the F15 and F16 connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Text in Illustration
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE COMBINATION METER ASSEMBLY Removal
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.