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 wiper and washer system.

VEHICLE BROUGHT TO WORKSHOP
NEXT: Go to next step
CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK
NEXT: Go to next step
INSPECT AUXILIARY BATTERY VOLTAGE
1. Measure the auxiliary battery voltage with the power switch off.
  Standard Voltage
  
  11 to 14 V (IG OFF)
  
  If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.
  
  NEXT: Go to next step

PROBLEM SYMPTOMS TABLE

Result

Result	Proceed to
Fault is not listed in problem symptoms table	A
Fault is listed in problem symptoms table	B

B → Go to step 6

A: Go to next step

OVERALL ANALYSIS AND TROUBLESHOOTING
1. Terminals of ECU. Refer to TERMINALS OF ECU [08/2013 - ]
2. Inspection
3. On-vehicle inspection
  NEXT: Go to next step
ADJUST, REPAIR OR REPLACE
NEXT: Go to next step
CONFIRMATION TEST
NEXT → END