How To Proceed With Troubleshooting [08/2013 - ]
WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
- Use the following procedure to troubleshoot the front power seat control system.
- *: Use the Techstream.
- VEHICLE BROUGHT TO WORKSHOP
NEXT: Go to next step
- CUSTOMER PROBLEM ANALYSIS
- Interview the customer to confirm the trouble. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]
.
NEXT: Go to next step
- Interview the customer to confirm the trouble. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]
.
- INSPECT AUXILIARY BATTERY VOLTAGE
- Measure the vehicle auxiliary battery voltage with the power switch off.
Standard Voltage
11 to 14 V
If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.
NEXT: Go to next step
- Measure the vehicle auxiliary battery voltage with the power switch off.
- CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
- Use the Techstream to check if the CAN communication system is functioning normally. Refer to DIAGNOSIS SYSTEM [08/2013 - ]
.
Result
Result Proceed to CAN DTC is not output A CAN DTC is output B B → GO TO CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]
A: Go to next step
- Use the Techstream to check if the CAN communication system is functioning normally. Refer to DIAGNOSIS SYSTEM [08/2013 - ]
.
- CHECK FOR DTC*
- Check for DTCs and note any codes that are output. Refer to DTC CHECK / CLEAR [08/2013 - ] .
- Clear the DTCs.
- Recheck for DTCs.
Result
Result Proceed to DTC is not output A DTC is output B B → GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2013 - ]
A: Go to next step
- PROBLEM SYMPTOMS TABLE
- Refer to Problem Symptoms Table. Refer to PROBLEM SYMPTOMS TABLE [08/2013 - ] .
Result Proceed to Fault is not listed in problem symptoms table A Fault is listed in problem symptoms table B B → Go to step 8
A: Go to next step
- Refer to Problem Symptoms Table. Refer to PROBLEM SYMPTOMS TABLE [08/2013 - ] .
- OVERALL ANALYSIS AND TROUBLESHOOTING*
- Operation Check. Refer to OPERATION CHECK [08/2013 - ]
- Data List / Active Test. Refer to DATA LIST / ACTIVE TEST [08/2013 - ]
- Terminals of ECU. Refer to TERMINALS OF ECU [08/2013 - ]
NEXT: Go to next step
- REPAIR OR REPLACE
NEXT: Go to next step
- CONFIRMATION TEST
NEXT → END