Diagnosis procedure
Regarding Wiring Diagram information, refer to WW-24, "Wiring Diagram - With Intelligent Key" or WW-29, "Wiring Diagram - Without Intelligent Key".
1.Check front wiper motor (gnd) open circuit

Is the inspection result normal? Yes >> front wiper motor ground circuit is normal.
No >> repair or replace the harness or connectors.
Front wiper auto stop signal circuit
Washer motor circuitWindshield glass
Exploded View
Windshield glass molding
Spacer
Rubber dam
Windshield glass
Windshield insulator
Front pillar finisher
Instrument panel
Cowl top cover
Roof panel
Cowl top
Body side outer
Headlining
Adhesive
12 +2.0 mm (0.5 +0.08 in)
7 +2.0 mm (0.3 +0.08 in)
...
C1601 Battery power supply
DTC Logic
DTC DETECTION LOGIC
DTC
Display item
Malfunction detected condition
Possible cause
C1601
BATTERY VOLT
When a power supply voltage to the EPS control unit
is maintained at 17.5 V or more or at less than 9 V
continuously for five second or more.
...
Controls
Fan control dial
The fan control dial turns the fan on and off, and
controls fan speed.
Air flow control buttons
The air flow control buttons allow you to select
the air flow outlets.
MAX — Air flows from center and side
A/Cvents with maximum cooling.
— Air flows from center and side
v ...