lexus Workshop Repair Guides

Lexus Workshop Service and Repair Manuals

Initial Inspection and Diagnostic Overview|Page 4975 > < Initial Inspection and Diagnostic Overview
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Inspection/Diagnostic Trouble Code Descriptions/Safety Connect System

C -- PERFORM PRL UPDATE    See: Programming and Relearning
A -- Continue to next step.

6. PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table    See: Symptom Related Diagnostic Procedures/Safety Connect System/Problem Symptoms Table.

Result:

HINT
If the symptom does not reoccur and no DTC is output, attempt to reproduce the symptoms  
  .

B -- Go to step 8
A -- Continue to next step.

7. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Refer to Terminals of ECU    See: Pinout Values and Diagnostic Parameters/Safety Connect System.

(b) Refer to Data List/Active Test    See: Scan Tool Testing and Procedures/Data List / Active Test.

NEXT -- Continue to next step.

8. REPAIR OR REPLACE

(a) Check if the DCM (Telematics Transceiver) has been replaced.

Result:

B -- Go to step 10
A -- Continue to next step.

9. PERFORM DCM ACTIVATION

(a) Perform " DCM ACTIVATION"    See: Scan Tool Testing and Procedures/DCM Activation.

NEXT -- Continue to next step.

10. CONFIRMATION TEST

NEXT -- END

Health Check

CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: HEALTH CHECK

1. HEALTH CHECK

Using the Techstream to perform a Health Check provides the technician with an overall view of vehicle status including telematics. Health Check
will provide DCM (Telematics Transceiver) software version, PRL version, and applicable DTCs and fault codes related to telematics.

(a) Connect the Techstream to the DLC3.

Initial Inspection and Diagnostic Overview|Page 4975 > < Initial Inspection and Diagnostic Overview