Toyota 4Runner 2003 - CARING FOR YOUR COMPACT DISC PLAYER AND DISCS

2003 4RUNNER (EWD514U)
188
Rear Wiper and Washer
∗ Rear wiper operation
The back door ECU initiates rear wiper intermittent or continuous operation according to rear wiper SW command from the
body ECU. At this point, the position of the back door window is confirmed and, if it is not fully closed, the command will be
neglected preventing the rear wiper from starting.
If the ignition SW is turned OFF while the rear wiper is operating, it comes to a stop but only after the wiper arm has
returned to its initial position.
∗ Rear washer operation
Turning the rear washer SW ON, with the ignition SW ON and the back door window fully closed, initiates rear washer
operation.
C14 Combination SW
10–Ground : Continuity with the rear wiper SW at ON position
13–Ground : Continuity with the rear wiper SW at INT position
2–Ground : Always continuity
Body ECU
22–Ground : Approx. 12 volts with ignition SW at ACC or ON position
1, 10–Ground : Approx. 12 volts with ignition SW at ON position
11–Ground : Always approx. 12 volts
4, 16–Ground : Always continuity
B8 (A) Back Door ECU
(A) 6–Ground : Approx. 12 volts with ignition SW at ON position
(A) 4, (A) 5–Ground : Always approx. 12 volts
(A) 3–Ground : Always continuity
: Parts Location
Code See Page Code See Page Code See Page
B1 36 B9 B 40 J15 38
B4 A 36 B11 40 J40 A 40
B5 B 36 C14 37 J41 B 40
B6 C 36 D7 40 R23 41
B7 40 J5 38
W2
33 (2UZ–FE)
B8 A 40 J7 38
W2
35 (1GR–FE)
:
Relay Blocks
Code See Page Relay Blocks (Relay Block Location)
2 22 Engine Room R/B (Engine Compartment Left)
:
Junction Block and Wire Harness Connector
Code See Page Junction Block and Wire Harness (Connector Location)
1B 24 Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1F 24 Floor No.2 Wire and Driver Side J/B (Lower Finish Panel)
1H 25 Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
:
Connector Joining Wire Harness and Wire Harness
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IC3
48
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IC4
48 Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IE1 50 Instrument Panel Wire and Floor No.2 Wire (Left Kick Panel)
IH1 50 Instrument Panel Wire and Instrument Panel Wire (Behind the Combination Meter)
BD1 54 Back Door No.1 Wire and Floor No.2 Wire (Left Rear Side of Roof)
System Outline
Service Hints