Abs Control (Motor) Relay Circuit - Toyota T100 1996 Service Manual

DTC
CIRCUIT DESCRIPTION
The ABS control (motor) relay supplies power to the ABS pump motor. While the ABS is activated, the ECU
switches the ABS control (motor) relay ON and operates the ABS pump motor.
DTC No.
Conditions 1 and 2 continued for 0.2 sec. or more:
1. ABS control (motor) relay terminal (MR) voltage: Battery
13 positive voltage
2. ABS control (motor) relay monitor terminal (MT) voltage:
0 V
Conditions 1 and 2 continued for 2.5 sec. or more:
1. ABS control (motor) relay terminal (MR) voltage: 0 V
14
2. ABS control (motor) relay monitor terminal (MT) voltage:
Battery positive voltage
Fail safe function:
If trouble occurs in the ABS control (motor) relay circuit, the ECU cuts off current to the ABS control (solenoid)
relay and prohibits ABS control.
WIRING DIAGRAM
10 2
R/B
No.2
2
9
R−L
W
Battery
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS
13, 14

ABS Control (Motor) Relay Circuit

DTC Detecting Condition
10
W
W
EA1
5
W W
EA1
W−B
W−B
A4
ID
− ANTI−LOCK BRAKE SYSTEM
S ABS control (motor) relay
S Open or short in ABS control (motor) relay circuit
S ECU
S ABS control (motor) relay
S B+ short in ABS control (motor) relay circuit
S ECU
ABS Contorl Relay
1
A6
Motor
Relay
2
A5
A5
6
2 5
A5
A6
W−R
LG
2 4
A4
A4
1
ABS Actuator
Trouble Area
4
R−B
A16
A6
3
G−B
A16
A6
Solenoid
Relay 1
R−W
A16
A5
DLC1
ABS ECU
3
R−Y
A16
A4
R−L
A4 A16
5
DI−335
DI106−03
ABS ECU
4
MR
15
R−
5
SR
11
AST
MT
8
F14589