DTC P1602-7B: Deterioration of Battery Low Fluid Level [11/2016 - ]: Procedure
WARNING: This page is about a different car, the 2019 Toyota Highlander, 2018 Toyota Highlander, and 2017 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK CHARGING SYSTEM
- Check the charging system.
Refer to ON-VEHICLE INSPECTION [11/2016 - ] .
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE CHARGING SYSTEM
Result:
OK
Go to next step
- Check the charging system.
- CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
- Disconnect the A43 ECM connector.
- Measure the voltage according to the value(s) in the table below.
*a Front view of wire harness connector
(to ECM)Standard Voltage
Tester Connection Condition Specified Condition A43-1 (BATT) - Body ground Always 11 to 14 V
Result:
OK
CHECK FOR INTERMITTENT PROBLEMS. Refer to CHECK FOR INTERMITTENT PROBLEMS [11/2016 - ] .
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - BATTERY)