Toyota Tundra 2003 Electrical Wiring Diagram page 147

ELECTRONICALLY CONTROLLED TRANSMISSION AND A/T INDICATOR
SERVICE HINTS
E1 ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID
4, 7, 8-GROUND : Approx. 13 Ω
O4 O/D MAIN SW
3–1 : Open with O/D main SW at ON position
Closed with O/D main SW at OFF position
S4 STOP LIGHT SW
1–2 : Closed with brake pedal depressed
E3(A), E4 (B), E5 (C), E6 (D), E7 (E) ENGINE CONTROL MODULE
S1-E1 : 9-14 volts with vehicle not move and shift lever in D position
S2,SL-E1 : 0-1.5 volts with vehicle not move
STP–E1 : 7.5–14 volts with brake pedal depressed
: 0–1.5 volts with brake pedal released
THW–E1 : 0.2–1.0 volts with idling, engine coolant temp. 60°C (140°F)–120°C (248°F)
THOC–E1 : Below 1.0 volts with fluid temp. 110°C (230°F)
VTA–E1 : 0.4–1.0 volts with ignition SW on and throttle valve fully closed
: 3.2–4.8 volts with ignition SW on and throttle valve fully open
VC–E1 : 4.5–5.5 volts with ignition SW at ON or ST position
ODMS–E1 : 9–14 volts with O/D main SW turned on
: 0–3 volts with O/D main SW turned off
SPD–E1 : Pulse generation with vehicle moving
2–E1 : 7.5–14 volts with shift lever at 2 position
: 0–1.5 volts with shift lever at except 2 position
L–E1 : 7.5–14 volts with shift lever at L position
: 0–1.5 volts with shift lever at except L position
+B–E1 : 9–14 volts with ignition SW at ON or ST position
BATT–E1 : Always 9–14 volts
P1 A/T INDICATOR SW [PARK/NEUTRAL POSITION SW]
3–1 : Closed with shift lever in P position
3–2 : Closed with shift lever in R position
3–5 : Closed with shift lever in N position
3–7 : Closed with shift lever in D position
3–4 : Closed with shift lever in 2 position
3–8 : Closed with shift lever in L position
: PARTS LOCATION
Code
A4 30 (2UZ–FE)
C11 A 34
C12 B 34
C13 C 34
C14 D 34
D8 34
E1 30 (2UZ–FE)
E2 30 (2UZ–FE)
E3 A 34
E4 B 34
E5 C 34
: RELAY BLOCKS
Code See Page
2 21
148
See Page Code
E6
E7
J1
J5
J8
J9
J10
J11
J12
J18
J20
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
2003 TOYOTA TUNDRA (EWD491U)
See Page
D 34
E 34
31 (2UZ–FE)
35
35
35
35
35
35
31 (2UZ–FE)
35
Code See Page
J23 A 35
J24 B 35
O1 31 (2UZ–FE)
O4 35
P1 31 (2UZ–FE)
S4 35
T2 31 (2UZ–FE)
V2 31 (2UZ–FE)
V3 31 (2UZ–FE)