What circuit and wire color feed the vanity mirror and courtesy/reading lamps?

Circuit 1732, a 0.35 ORN wire (fed by a 0.5 ORN 1732 wire from the Relay Block – I/P, pin M of connector C3, via splice S321).

Where do the interior lamp grounds go?

The lamps ground through 0.35/0.5 BLK circuit 1050 wires to splice S345, then via 1 BLK and 2 BLK to the Relay Block – I/P and via 3 BLK through splice S202 and the Junction Block – I/P (pin A, connector C4) to ground G200.

Which lamp is noted as Tahoe/Yukon only?

The Courtesy/Reading Lamp – Rear is labeled "Tahoe/Yukon Only."

What wire supplies the overhead console's courtesy lamp voltage?

A 0.35 GRY/BLK wire, circuit 690, labeled Courtesy Lamp Supply Voltage, entering the overhead console at pin C of connector C355.

What connector is used at the overhead console?

Connector C355 — pins A and C for power feeds and pin B for the 0.5 BLK 1050 ground.

Home/ Registry/ Chevrolet/ Tahoe/ 2000-2006/ 2004 Chevrolet Tahoe/ Photo supermotors.net/registry/media/904093

Chevy Tahoe/Yukon Interior Lighting Wiring Diagram - Inadvertent Power 2 of 3

GM inadvertent power supply voltage wiring vanity courtesy reading lamps overhead console

‹ ›

Wiring schematic (2 of 3) for inadvertent power supply circuit feeding vanity mirror, courtesy/reading, dome, and overhead console lamps with circuit/wire IDs.

AI caption January 2012 · Photo 13 of 15

This document is page 2 of 3 of an "Inadvertent Power Supply Voltage" wiring schematic covering interior lighting circuits. It shows the inadvertent power supply bus from the I/P Relay Block feeding circuit 1732 (0.5 ORN wire) through connector C3 pin M to splice S321. From S321, 0.35 ORN 1732 wires branch to the Left and Right Vanity Mirror Lamps, the Courtesy/Reading Lamp – Rear (noted as "Tahoe/Yukon Only"), the Courtesy/Reading Lamp – Mid, and the Overhead Console (map lamps, with reference to Garage Door Opener Schematics via connector C355). A 0.35 GRY/BLK wire, circuit 690, supplies Courtesy Lamp Supply Voltage to the overhead console. All lamp grounds (0.35 BLK / 0.5 BLK, circuit 1050) collect at splice S345, which routes via 1 BLK and 2 BLK 1050 to the Relay Block – I/P (pins C/C3 and D9/C1) and via 3 BLK 1050 to splice S202, through the Junction Block – I/P (pin A, connector C4) to ground G200. Connector ID legend tables are provided for both the Relay Block and Junction Block, listing connector cavity counts and colors (e.g., C1=68 GRY, C10=12 NAT). References point to Ground Distribution Schematics for related detail.

Is this accurate? Sign in to help verify it.

Frequently asked questions

What circuit and wire color feed the vanity mirror and courtesy/reading lamps?: Circuit 1732, a 0.35 ORN wire (fed by a 0.5 ORN 1732 wire from the Relay Block – I/P, pin M of connector C3, via splice S321).
Where do the interior lamp grounds go?: The lamps ground through 0.35/0.5 BLK circuit 1050 wires to splice S345, then via 1 BLK and 2 BLK to the Relay Block – I/P and via 3 BLK through splice S202 and the Junction Block – I/P (pin A, connector C4) to ground G200.
Which lamp is noted as Tahoe/Yukon only?: The Courtesy/Reading Lamp – Rear is labeled "Tahoe/Yukon Only."
What wire supplies the overhead console's courtesy lamp voltage?: A 0.35 GRY/BLK wire, circuit 690, labeled Courtesy Lamp Supply Voltage, entering the overhead console at pin C of connector C355.
What connector is used at the overhead console?: Connector C355 — pins A and C for power feeds and pin B for the 0.5 BLK 1050 ground.