Lexus ES manuals

Lexus ES: Red Indicator Remains On

DESCRIPTION

This means that the DCM (telematics transceiver) has detected a malfunction in the safety connect system and stored a DTC or specific vehicle control history (RoB) Code.

PROCEDURE

1.

CHECK DTC

(a) Turn the power switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the power switch on (IG) and wait for 10 seconds or more.

(d) Turn the Techstream on.

(e) Clear the DTCs.

Body Electrical > Telematics > Clear DTCs

(f) Check for DTCs and check that no DTCs are output.

Body Electrical > Telematics > Trouble Codes

OK:

No DTCs are output.

NG

GO TO DIAGNOSTIC TROUBLE CODE CHART

OK

2.

CHECK VEHICLE OPERATION HISTORY

(a) Check for vehicle control history and note any codes that are output.

Click here

Result

Proceed to

No vehicle control history is output

A

Any vehicle control history is output

B

B

GO TO VEHICLE CONTROL HISTORY

A

3.

REPLACE DCM (TELEMATICS TRANSCEIVER)

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

Click here

NOTICE:

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

PERFORM DCM ACTIVATION

READ NEXT:

 System Diagram

SYSTEM DIAGRAM

 Terminals Of Ecu

TERMINALS OF ECU Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition G128-1 (+B) - G128-20 (E) BR - W-B Power source (+B) Power switch off 11

 Unable To Connect To Call Center

DESCRIPTION This may occur when the intensity of telephone radio frequency was very weak, or the safety connect system has a malfunction and a DTC is set. PROCEDURE 1. CHECK COMMUNICATION SERVIC

SEE MORE:

 Reassembly

REASSEMBLY PROCEDURE 1. INSTALL FUEL PUMP HINT: Perform "Inspection After Repair" after replacing the fuel pump. Click here (a) for Type A: (1) Apply gasoline to a new O-ring. Then install the O-ring and fuel pump spacer to the fuel pump. *1 O-ring *2 Fuel Pump Spacer

 Vehicle Speed Information Communication Lost (C2178)

DESCRIPTION The tire pressure warning ECU and receiver receives signals from the combination meter assembly via CAN communication. If a malfunction occurs in this communication line, DTC C2178 is output. DTC No. Detection Item DTC Detection Condition Trouble Area Note C2178 Vehicle

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