Initial Inspection and Diagnostic Overview - Page 81
(1) Waveform 1
2. CHECK DISPLAY AND NAVIGATION MODULE DISPLAY (NAVIGATION ECU) (w/ Navigation System (for HDD)) See: Accessories
and Optional Equipment/Navigation System/Testing and Inspection/Pinout Values and Diagnostic Parameters/Navigation System (for HDD)
3. CHECK STEREO COMPONENT AMPLIFIER ASSEMBLY (w/ Navigation System (for HDD)) See: Accessories and Optional
Equipment/Radio, Stereo, and Compact Disc/Testing and Inspection/Pinout Values and Diagnostic Parameters/Audio and Visual System (w/
Navigation System)
4. CHECK STEREO COMPONENT AMPLIFIER ASSEMBLY (w/o Navigation System) See: Accessories and Optional Equipment/Radio,
Stereo, and Compact Disc/Testing and Inspection/Pinout Values and Diagnostic Parameters/Audio and Visual System (w/o Navigation System)
LEXUS ENFORM System
CELLULAR COMMUNICATION: LEXUS ENFORM SYSTEM: TERMINALS OF ECU
1. TELEMATICS TRANSCEIVER See: Pinout Values and Diagnostic Parameters/Safety Connect System
2. DISPLAY AND NAVIGATION MODULE DISPLAY See: Accessories and Optional Equipment/Navigation System/Testing and
Inspection/Pinout Values and Diagnostic Parameters/Navigation System (for HDD)
Programming and Relearning
CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: PRL UPDATE
1. PRL UPDATE
This function updates the PRL (Preferred Roaming List) of the DCM (Telematics Transceiver). The PRL is a large set of phone numbers the DCM
(Telematics Transceiver) can utilize to make an emergency call when outside (roaming) the telematics service area. The PRL update utility could
be used in the following scenarios:
PRL update is required after "Health Check"
DCM Activation Utility requires a PRL update before activation
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Click "Health Check".
(e) Verify if updates are available for the currently installed PRL version (Yes or No).
(f) If "Yes" is listed, click it. A TIS web page will open with Calibration Search Results.
(g) Click on the latest service bulletin (TSB) link.