Lexus ES manuals

Lexus ES: Emergency Call Switch Illumination Circuit

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Safety Connect System.

    Click here

  • Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (MAP LIGHT SUB-ASSEMBLY (MANUAL (SOS) SWITCH) POWER SOURCE)

(a) Disconnect the G128 DCM (telematics transceiver) connector.

(b) Disconnect the P12 map light sub-assembly (manual (SOS) switch) connector.

(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

P12-5 (RRID) - Body Ground

Engine switch on (IG)

11 to 14 V

(d) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

G128-3 (SIG-) - P12-9 (GND3)

Always

Below 1 Ω

G128-3 (SIG-) or P12-9 (GND3) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

2.

INSPECT MAP LIGHT SUB-ASSEMBLY (MANUAL (SOS) SWITCH)

(a) Remove the map light sub-assembly (manual (SOS) switch).

Click here

*a

Component without harness connected

(Map light sub-assembly (Manual (SOS) Switch))

(b) Apply battery voltage to the connector and check that the manual (SOS) switch illumination comes on.

OK:

Measurement Condition

Condition

Specified Condition

Battery positive (+) → P12-5 (RRID)

Battery negative (-) → P12-9 (GND3)

Always

Manual (SOS) switch illumination cones on

NG

REPLACE MAP LIGHT SUB-ASSEMBLY (MANUAL (SOS) SWITCH)

OK

3.

REPLACE DCM (TELEMATICS TRANSCEIVER)

(a) Replace the DCM (telematics transceiver) with a new one.

Click here

NOTICE:

  • The engine switch must be off.
  • Do not exchange the DCM (telematics transceiver) with one from another vehicle.
NEXT

PERFORM DCM ACTIVATION

READ NEXT:

 Green Indicator Remains Off

DESCRIPTION After engine switch on (IG), the DCM (telematics transceiver) will enter into self check mode. The manual (SOS) switch red indicator will illuminate for 2 seconds and turn off followed by

 How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the safety connect system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT

 Initialization

INITIALIZATION RESET BACK-UP BATTERY CONDITION HINT: If the back-up battery (mobilephone battery) has been replaced, it is necessary to perform the Reset Backup Battery Condition procedure. (a) Connec

SEE MORE:

 A25a-fxs Air Cleaner Filter Element

Components COMPONENTS ILLUSTRATION *1 AIR CLEANER CAP SUB-ASSEMBLY *2 AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY Removal REMOVAL PROCEDURE 1. SEPARATE AIR CLEANER CAP SUB-ASSEMBLY (a) Disengage the 2 air cleaner cap clamps.

 Components

COMPONENTS ILLUSTRATION *1 ENGINE WIRE *2 HV AIR CONDITIONING WIRE *3 STARTER HOLE INSULATOR *4 FLYWHEEL HOUSING SIDE COVER *5 FUEL DELIVERY GUARD *6 STEERING GEAR HEAT INSULATOR N*m (kgf*cm, ft.*lbf): Specified torque - - ILLUSTRATION *1 FRONT FRAME

© 2016-2023 Copyright www.lexguide.net