Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Inspection
INSPECTION
PROCEDURE
1. INSPECT MAP LIGHT ASSEMBLY
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| U11-4 (+B1) - U12-14 (RIFR) | Always | Below 1 Ω |
| U12-10 (RLMP) - U12-20 (GND9) | Always | Below 1 Ω |
| U11-1 (IG) - U11-14 (IG2) | Always | Below 1 Ω |
| U11-19 (GND) - U11-21 (GND2) | Always | Below 1 Ω |
If the result is not as specified, replace the map light assembly.
| (b) Inspect the front map light. (1) Apply battery voltage to the connector and check that the front map light comes on. OK:
If the result is not as specified, replace the map light assembly. |
|
(c) Inspect the front dome light.
(1) Apply battery voltage to the connector and check that the front dome light comes on.
OK:
| Measurement Condition | Condition | Specified Condition |
|---|---|---|
| Battery positive (+) → U11-4 (+B1) Battery negative (-) → U11-9 (CTY) | Always | Front dome light comes on |
| Battery positive (+) → U11-4 (+B1) Battery negative (-) → U11-10 (RIFL) |
If the result is not as specified, replace the bulb or map light assembly.
(d) Inspect the front dome light switch and door switch.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| U12-18 (DOOR) - U12-20 (GND9) | Door switch on | Below 1 Ω |
| U12-18 (DOOR) - U12-20 (GND9) | Door switch off | 10 kΩ or higher |
If the result is not as specified, replace the map light assembly.
(e) Inspect the switch illumination.
(1) Apply battery voltage to the connector and check that the switch illumination comes on.
OK:
| Measurement Condition | Condition | Specified Condition |
|---|---|---|
| Battery positive (+) → U11-16 (ILLB) Battery negative (-) → U11-8 (LILL) | Always | Switch illumination comes on |
If the result is not as specified, replace the map light assembly.
Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE NO. 1 ROOF CONSOLE BOX COVER (a) Using a screwdriver with its tip wrapped with protective tape, disengage the 20 claws to remove the No. 1 roof console box cover. ...
Reassembly
REASSEMBLY PROCEDURE 1. INSTALL NO. 1 ROOF CONSOLE BOX COVER (a) Engage the 20 claws to install the No. 1 roof console box cover. ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Lighting System (w/o Automatic Headlight Beam Level Control System): Vehicle Control History
VEHICLE CONTROL HISTORY CHECK VEHICLE CONTROL HISTORY HINT:
The vehicle control history data stores the history of the reject function and system protection operations.
The number of occurrences, date and distance are stored in batches for each item.
(a) Connect the Techstream to the DLC3. ( ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Smart Access System With Push-button Start (for Start Function): 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 suspect ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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