LS 460 AWD V8-4.6L (1UR-FSE) (2009)
Emergency Contact Module: Component Tests and General Diagnostics
CELLULAR COMMUNICATION: LEXUS LINK SYSTEM: ECU Power Source Circuit
ECU Power Source Circuit
DESCRIPTION
This circuit supplies power to operate the mayday ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. INSPECT FUSE (RADIO NO. 1, P RR-IG2, P-ACC)
(a) Remove the RADIO NO. 1, P RR-IG2 and P-ACC fuses from the passenger side junction block.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE FUSE
OK -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (ECU - VEHICLE BATTERY AND BODY GROUND)