1996 TOYOTA RAV4 warning light

DI7HG−02
W01411
1 2 3 4 5 6 7 8 9
22 11
21 20 19 18 17 16 15 14 13 1210 1 2 3 4 5 6
7 8 9 10 11 12
A16
A17
DI−242
− DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
1996 RAV4 (RM447U)
TERMINALS OF ECU
2WD Models:
Symbols (Terminal No.)Wiring ColorConditionSTD Voltage (V)
IG1 (A16−2) −
GND (A17−2, 13)B−Y − W−BIG switch ON10 − 14
SR (A17−18) − R+ (A17−8)R−L − R−WIG switch ON ABS warning light OFFBelow 1.5
MR (A17−7) − R+ (A17−8)R−B − R−WIG switch ON10 − 14
SFRH (A17−4) −
GND (A17−2, 13)R−W − W−BIG switch ON ABS warning light OFF10 − 14
SFRR (A17−1) −
GND (A17−2, 13)R−G − W−BIG switch ON ABS warning light OFF10 − 14
SFLH (A17−10) −
GND (A17−2, 13)L−R − W−BIG switch ON ABS warning light OFF10 − 14
SFLR (A17−11) −
GND (A17−2, 13)L−W − W−BIG switch ON ABS warning light OFF10 − 14
SRRR (A17−22) −
GND (A17−2, 13)G−Y − W−BIG switch ON ABS warning light OFF10 − 14
SRRH (A17−21) −
GND (A17−2, 13)G−B − W−BIG switch ON ABS warning light OFF10 − 14
SRLR (A17−12) −
GND (A17−2, 13)BR−R − W−BIG switch ON ABS warning light OFF10 − 14
SRLH (A17−5) −
GND (A17−2, 13)BR−W − W−BIG switch ON ABS warning light OFF10 − 14
AST (A17−16) −
GND (A17−2, 13)G−W − W−BIG switch ON ABS warning light OFF10 − 14
MT (A17−9) −
GND (A17−2, 13)L−O ↔ W−BIG switch ONBelow 1.5
WA (A16−4) −
GND (A17−2, 13)R−Y − W−BIG switch ON ABS warning light ONBelow 2.0
IG switch ON ABS warning light OFF10 − 14
STP (A16−12) −
GND (A17−2, 13)G−W − W−BStop light switch OFFBelow 1.5
Stop light switch ON8 − 14
Tc (A16−9) − GND (A17−2, 13)W−L − W−BIG switch ON10 − 14
Ts (A16−8) − GND (A17−2, 13)L − W−BIG switch ON10 − 14
FR+ (A17−3) − FR− (A17−14)B − WIG switch ONSlowly turn right front wheelAC generation
FL+ (A17−19) − FL− (A17−20)R − GIG switch ONSlowly turn left front wheelAC generation
RR+ (A16−1) − RR− (A16−7)Y −BRIG switch ONSlowly turn right rear wheelAC generation
RL+ (A16−3) − RL− (A16−10)G − RIG switch ONSlowly turn left rear wheelAC generation

R00463
A17A16
1 2 3 4 5 6 7 8
9 10 11 12 13 1 2 3 4 5 6 7 8
14 15 16 9 10 11 12 13
14 15 16 17 18 19 20 21 22 23 24 25 26
− DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
DI−243
1996 RAV4 (RM447U)
4WD Models:
Symbols (Terminal No.)Wiring ColorConditionSTD Voltage (V)
BAT (A17−22) −
GND (A17−11, 24)L−Y − W−BAlways10 − 14
IG1 (A17−10) −
GND (A17−11, 24)B−Y − W−BIG switch ON10 − 14
SR (A16−5) − R− (A16−15)R−L − R−WIG switch ON ABS warning light OFF10 − 14
MR (A16−4) − R− (A16−15)R−B − R−WIG switch ONBelow 1.0
SFRH (A16−1) −
GND (A17−11, 24)R−W − W−BIG switch ON ABS warning light OFF10 − 14
SFRR (A16−2) −
GND (A17−11, 24)R−G − W−BIG switch ON ABS warning light OFF10 − 14
SFLH (A17−13) −
GND (A17−11, 24)L−R − W−BIG switch ON ABS warning light OFF10 − 14
SFLR (A17−12) −
GND (A17−11, 24)L−W − W−BIG switch ON ABS warning light OFF10 − 14
SRRR (A17−25) −
GND (A17−11, 24)G−Y − W−BIG switch ON ABS warning light OFF10 − 14
SRRH (A17−26) −
GND (A17−11, 24)G−B − W−BIG switch ON ABS warning light OFF10 − 14
SRLR (A16−10) −
GND (A17−11, 24)BR−R − W−BIG switch ON ABS warning light OFF10 − 14
SRLH (A16−9) −
GND (A17−11, 24)BR−W − W−BIG switch ON ABS warning light OFF10 − 14
AST (A16−11) −
GND (A17−11, 24)G−W − W−BIG switch ON ABS warning light OFF10 − 14
MT (A16−8) −
GND (A17−11, 24)L−O ↔ W−BIG switch ONBelow 1.5
WA (A16−12) −
GND (A17−11, 24)R−Y − W−BIG switch ON ABS warning light ONBelow 2.0
IG switch ON ABS warning light OFF10 − 14
PKB (A17−9) −
GND (A17−11, 24)R−B − W−BIG switch ON PKB switch ONBelow 1.5
IG switch ON PKB switch OFF10 − 14
STP (A17−21) −
GND (A17−11, 24)G−W − W−BStop light switch OFFBelow 1.5
Stop light switch ON8 − 14
Tc (A17−20) −
GND (A17−11, 24)W−L − W−BIG switch ON10 − 14
Ts (A17−6) − GND (A17−11, 24)L − W−BIG switch ON10 − 14
FR+ (A16−7) − FR− (A16−6)B − WIG switch ONSlowly turn right front wheelAC generation
FL+ (A16−14) − FL− (A16−13)R − GIG switch ONSlowly turn left front wheelAC generation

DI41I−02
− DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
DI−245
1996 RAV4 (RM447U)
PROBLEM SYMPTOMS TABLE
If a normal code is displayed during the DTC check but the problem still occurs, check the circuits for each
problem symptom in the order given in the table below and proceed to the relevant troubleshooting page.
SymptomsSuspected AreaSee page
ABS does not operate
Only when 1 − 4 are all normal and the problem is still occuring, replace the ABS
ECU
2. Check the DTC, reconfirming that the normal code is output
3. IG power source circuit
4. Speed sensor circuit
5. Check the ABS actuator with a checker
If abnormal, check the hydraulic circuit for leakage (See page DI−282)
DI−234
DI−262
DI−257
BR−35
ABS does not operate effi-
ciently
Only when 1 − 4 are all normal and the problem is still occuring, replace the ABS
ECU
1. Check the DTC, reconfirming that the normal code is output
2. Speed sensor circuit
3. Stop light switch circuit
4. Check the ABS actuator with a checker
If abnormal, check the hydraulic circuit for leakage (See page DI−282)
DI−234
DI−257
DI−273
BR−35
ABS warning light abnormal1. ABS warning light circuit
2. ABS ECUDI−275
−
DTC check cannot be done
Only when 1 and 2 are all normal and the problem is still occuring, replace the ABS
ECU
1. ABS warning light circuit
2. Tc terminal circuit
DI−275
DI−278
Speed sensor signal check
cannot be done1. Ts terminal circuit
2. ABS ECUDI−280
−

W01940
− DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
DI−267
1996 RAV4 (RM447U)
DTC 44 Deceleration Sensor Circuit (4WD Models)
CIRCUIT DESCRIPTION
This sensor detects deceleration on the vehicle. The sensor signal is used in ABS control. If the sensor func-
tions abnormally, the ABS warning light comes on but the ABS still operates.
DTC No.TC Detecting ConditionTrouble Area
44
Either of the following 1 or 2 is detected:
1. G switch ON and output voltage of GL1 or GL2 remains 0.5
V or less or 4.5 V or more for more than 1.2 sec.
2. At vehicle speed of 0 km/h, outputs of GL1 and of GL2 re-
mains abnormally different for 60 sec. or more
3. IG switch ON and VGS  4.4 V, VGS  5.5 V continues
for 1.2 sec. or more
Deceleration sensor
Open or short in deceleration sensor circuit
ECU
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check for open and short in harness and connector between sensor and ECU
(See page IN−30).
NG Repair or replace harness or connector.
OK
DI98Y−01

− DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
DI−271
1996 RAV4 (RM447U)
INSPECTION PROCEDURE
1 Is DTC output?
Check DTC on page DI−234.
YES Repair circuit indicated by code output.
NO
2 Is normal code displayed?
YES Check ABS solenoid relay. Check for short in
harness and connector between ABS solenoid
relay and DLC1 (See page IN−30).
NO
3 Is ABS warning light go off?
YES Check for open or short in harness and connec-
tor between ECU−IG Fuse and ECU (See page
IN−30).
NO
4 Check battery positive voltage.
PREPARATION:
Start the engine.
CHECK:
Check the battery positive voltage.
OK:
Voltage: 10 − 16 V
NG Check and repair charging system.
OK

DI−272
− DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
1996 RAV4 (RM447U)
5 Check ABS warning light.
PREPARATION:
(a) Turn the ignition switch OFF.
(b) Disconnect the connector from the ABS ECU.
(c) Turn the ignition switch ON.
CHECK:
Check the ABS warning light goes off.
OK Check and replace ABS ECU.
NG
Check for short in harness and connector between combination meter and ABS ECU, and com-
bination meter and DLC1 (See page IN−30).

W01941
*2*1
*1: 2WD models
*2: 4WD models
− DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
DI−275
1996 RAV4 (RM447U)
ABS Warning Light Circuit
CIRCUIT DESCRIPTION
If the ECU detects trouble, it lights the ABS warning light while at the same time prohibiting ABS control. At
this time, the ECU records a DTC in memory. After removing the short pin of the DLC1, connect terminals
Tc and E1 of the DLC1 to make the ABS warning light blink and output the DTC.
WIRING DIAGRAM
INSPECTION PROCEDURE
Troubleshooting in accordance with the chart below for each trouble symptom.
ABS warning light does not light upGo to step 1
ABS warning light remains onGo to step 3
1 Check ABS warning light.
See combination meter troubleshooting on page BE−2.
NG Replace bulb or combination meter assembly.
OK
DI98X−01

− DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
DI−277
1996 RAV4 (RM447U)
3 Is DTC output?
Check DTC on page DI−234.
YES Repair circuit indicated by code output.
NO
4 Does ABS warning light go off if short pin is removed?
NO Check for short in harness and connector be-
tween warning light and DLC1 and ECU (See
page IN−30).
YES
5 Check ABS control relay (See step No. 2).
NG Replace ABS control relay.
OK
Check for short in harness and connect be-
tween DLC1 and ABS control relay (See page
IN−30).