Lexus ES: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure to troubleshoot the LEXUS ENFORM system.
- *: Use the Techstream.
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
|
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| 2. | CHECK THE CUSTOMER'S CONTRACT STATUS |
(a) Check if the satellite radio and LEXUS ENFORM contracts are valid, or if the contract period has ended using the vehicle inquiry function on TIS.
| Result | Proceed to |
|---|---|
| Both Contracts are valid. | A |
| Contract for satellite radio is not valid. (w/o Navigation System) | B |
| Contract for satellite radio is not valid. (w/ Navigation System) | C |
| Contract for LEXUS ENFORM is not valid. | D |
| B | .gif) | GO TO AUDIO AND VISUAL SYSTEM |
| C | | GO TO NAVIGATION SYSTEM |
| D | | GO TO SAFETY CONNECT SYSTEM |
|
| 3. | CHECK CAN COMMUNICATION SYSTEM* |
(a) Check if CAN communication system DTCs are output.
Click here .gif)
| Result | Proceed to |
|---|---|
| CAN DTCs are not output. | A |
| CAN DTCs are output. | B |
| B | | GO TO CAN COMMUNICATION SYSTEM |
|
| 4. | CHECK DTC* |
(a) Check for DTCs.
Safety connect system: Click here
Telematics system: Click here
Safety connect system: Click here
Telematics system: Click here
| Result | Proceed to |
|---|---|
| DTCs are not output. | A |
| Safety connect system DTCs are output. | B |
| Telematics system DTCs are output. | C |
| B | | GO TO SAFETY CONNECT SYSTEM |
| C | | GO TO TELEMATICS SYSTEM |
|
| 5. | PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table.
Click here
| Result | Proceed to |
|---|---|
| Fault is not listed in Problem Symptoms Table. | A |
| Fault is listed in Problem Symptoms Table. | B |
HINT:
If the symptom does not recur and no DTCs are output, perform the simulation method.
Click here
| B | | GO TO STEP 7 |
|
| 6. | PERFORM TROUBLESHOOTING* |
(a) Refer to Terminals of ECU.
Click here
|
| 7. | REPAIR OR REPLACE |
|
| 8. | CONFIRMATION TEST |
| NEXT | | END |
READ NEXT:
Operation Check
OPERATION CHECK LEXUS APP SUITE RESET PROCEDURE (a) Duplicate the problem symptom. (b) Check for DTCs and repair the systems for which any DTCs are output. Click here (c) Check cellular phone compa
Parts Location
PARTS LOCATION ILLUSTRATION *1 ROOF ANTENNA ASSEMBLY - GPS - Telephone Main *2 FRONT NO. 2 SPEAKER ASSEMBLY RH *3 NAVIGATION ANTENNA ASSEMBLY - Telephone Sub *4 DLC3 *5 DCM (
Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE:
After the engine switch is turned off, the radio receiver assembly records various types of memory and settings.
SEE MORE:
Operation Method
OPERATION METHOD PROCEDURE 1. PRECAUTION Click here 2. TURN BACK LUGGAGE COMPARTMENT TRIM COVER RH (a) Turn back the luggage compartment trim cover RH as shown in the illustration. Remove in this Direction 3. SEPARATE REAR SEAT CUSHION ASSEMBLY Click here 4. REMOVE REAR SEAT CUSHION
Control Module Communication Bus OFF (U0073,U0126,U0142,U0182)
DESCRIPTION These DTCs are stored if a CAN communication malfunction occurs between the headlight ECU sub-assembly RH and other ECUs. for LED Type Turn Signal Light DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from U0073 Control Module Communication Bus OFF
