1992 Toyota Previa Electrical Supplement

SERVICE HINTS

E 7(O),E I@,E 9@ ENGINE AND ECT ECU

VOLTAGE AT E~U WIRING CONNECTORS

@15-@24:10-14VOLTS (IGNITION SW ON)

@14. @ 1-@24:0VOLTS (IGNITION SW ON)

(O)19-@24:IO-14VOLTS (BRAKE PEDAL IS DEPRESSED)

OVOLTS (BRAKE PEDAL IS RELEASED)

@ 4-@ 9:0.1-I.OVOLTS (IGNITION SW ON AND COOLANT TEMP. IO'C (176'F))

@12-@ 9:0VOLTS (IGNITION SW ON AND THROTTLE VALVE FULLY CLOSED)

IO-14VOLTS (IGNITION SW ON AND THROTTL~ VALVE OPEN)

@11-@ 9:0.1-I.OVOLTS (IGNITION SW ON AND THROTlFLE VALVE FULLY CLOSED)

3-5VOLTS (IGNITION SW ON AND THROTTLE VALVE OPEN)

@ 1-@ 9:4-6VOLTS (IGNITION SW ON)

(O)21-@24:5VOLTS (IGNITION SW ON)

(O)20-@24:IO-14VOLTS (IGNITION SW ON AND % MAIN SW TURNED ON)

OVOLTS (IGNITION SW ON AND % MAIN SW TURNED OFF)

(0) 9-@24:0 OR 5VOLTS (IGNITION SW ON. CRUISE CONTROL MAIN SW OFF AND STANDING STILL)

2-3VOLTS (IGNITION SW ON. CRUISE CONTROL MAIN SW OFF AND VEHICLE MOVING)

(0) 8-@24:0 OR 5VOLTS (IGNITION SW ON AND STANDING STILL)

2-3VOLTS (IGNITION SW ON AND VEHICLE MOVING)

(O)16-@24:10-14VOLTS (IGNITION SW ON AND NEUTRAL START SW AT N POSITION)

0-2VOLTS (IGNITION SW ON AND EX. NEUTRAL START SW AT N POSITION)

(O)15-@24:IO-14VOLTS (IGNITION SW ON AND NEUTRAL START SW AT 2 POSITION)

0-2VOLTS (IGNITION SW ON AND EX. NEUTRAL START SW AT 2 POSITION)

(O)14-@24:10-14VOLTS (IGNITION SW ON AND NEUTRAL START SW AT L POSITION)

0-2VOLTS (IGNITION SW ON AND EX. NEUTRAL START SW AT L POSITION)

(0)12. (O)13-@24:10-14VOLTS (IGNITION SW ON)

(0) 1-@24:10-14VOLTS (ALL CONDITIONS)

RESISTANCE AT ECU WIRING CONNECTORS

(DISCONNECT WIRING CONNECTORS)

@12-@ 9:0.IKn OR LESS (THROTTLE VALVE FULLY CLOSED)

INFINITY (THROTTLE VALVE OPEN)

@11-@ 9:0.2-O.IKn (THROTTLE VALVE FULLY CLOSED)

3.3-IO.OKn (THROTTLE VALVE OPEN)

@ 4-@ 9:0.2-O.4Kn (COOLANT TEMP. 10'C (176'F))

@ 1-@ 9:0.1-0.3Kn ,

@ 1.@14.@15-GROUND:11-15n (ALL CINDITIONS)

() I PARTS LOCATION

CODE SEE PAGE CODE

C 2 22 F 9 I A 20

C 6 I A 22 FlO I B 20

CI4^22 I I 20

CI6 I A 22 I I 23

E I 20 J I 23

E 6 22 J 2 23

E 7 I A 22 J 4 23

E I I B 22 N I 20

<:) I RELAY BLOCKS

RELAY BLOCKS (RELAY BLOCK LO~ATION)

R/B NO.1 (INSTRUMENT PANEL CENTER)

SEE PAGE

c:J I CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

CODE SEE PAGE JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)

ECI 24 COWL WIRE AND TRANSMISSION WIRE (ABOVE THE TRANSMISSION)

IHI 26 ENGINE NO.1 WIRE AND COWL WIRE (UNDER THE DRIVER'S SEAT)

IH2

~ I GROUND POINTS

CODE SEE PAGE GROUND POINTS LOCATION

EA 24 FRONT RIGHT FENDER

EC 24 INTAKE MANIFOLD

10 26 LEFT SIDE OF INSTRUMENT PANEL REINFORCEMENT

IE 26 RIGHT SIDE OF INSTRUMENT PANEL REINFORCEMENT

CODE

o 4

S I I

S 2 I

SII

SlIi

T 2

" I

SEE PAGE

23

A 20

B 20

23

23

20

20