TOYOTA CAMRY 1999 Service Repair Manual

± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM
DI±219
2 Check for open and short circuit in harness and connector between ABS ECU
and DLC1, DLC1 and body ground (See page IN±29).
NG Repair or replace harness or connector.
OK
Check and replace ABS ECU.

F00071
DI±220
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM
Check for Fluid Leakage
Check for fluid leakage from actuator or hydraulic lines.
DI03T±04

DI1AX±09
Warning Light Check
DI±223
END
: Diagnostic steps permitting the use
of the TOYOTA hand±held tester.
DI±222
DI±223
Symptom SimulationNormal
DTC Check
Warning Light
ONMalfunction CodeWarning Light
Remains OFF
Circuit Inspection
Identification of Problem
Repair
Warning Light Check
DI±223
DTC Check (Read Past DTC)
Confirmation Test
Remains ON
Remains OFF
Clear DTC (Present and Past DTC)Item inside are titles of pages in this manual,
with the page number in the bottom portion. See the
pages for detailed explanations.
1
2
43
5
7
8
9
10
DTC Chart
11
6DI±229
IN±19 DI±234 to DI±313Remains OFF
Remains ON
Vehicle Brought to Workshop
Customer Problem Analysis
DTC Check (Read Present DTC)
Step 3, 4, 6, 8, 9, 11
DI±223
DTC Check (Read Past DTC)
DI±223
DI±223
DI±223
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±221
291 Author: Date:
SUPPLEMENTAL RESTRAINT SYSTEM
HOW TO PROCEED WITH TROUBLESHOOTING

DI15Z±09
Supplemental Restraint System Check Sheet
Date Problem Occurred
Customer 's Name
Registration No.
Registration Year
Frame No.
Odometer Reading
Weather
Temperature
Vehicle Operation
Road Conditions
Details Of Problem
Vehicle Inspection, Repair Histo-
ry Prior to Occurrence of Mal-
function (Including Supplemen-
tal Restraint System)
Diagnosis System Inspection
SRS Warning Light
Inspection
DTC Inspection1st Time
2nd Time
1st Time
2nd TimeInspector 's
Name
Fine Cloudy Rainy Snowy Other
Approx.
Starting Idling
Driving [ Constant speed Acceleration Deceleration
Other ]
Remains ON Sometimes Light Up Does Not Light Up
Remains ON Sometimes Light Up
Does Not Light Up
Normal Code Malfunction Code
Normal Code Malfunction Code[ Code. ]
[ Code. ]km
Miles //
//
// Date Vehicle Brought In
DI±222
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
CUSTOMER PROBLEM ANALYSIS CHECK

DI4L1±05
H10313
R13006
DLC1
E1 Tc
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±223
PRE±CHECK
1. SRS WARNING LIGHT CHECK
(a) Turn the ignition switch to the ACC or ON position and
check that the SRS warning light lights up.
(b) Check that the SRS warning light goes out after approx.
6 seconds.
HINT:

When the ignition switch is at ACC or ON and the SRS
warning light remains on or flashes, the airbag sensor as-
sembly has detected a malfunction code.

If, after approx. 6 seconds have elapsed, the SRS warn-
ing light sometimes lights up or the SRS warning light
lights up even when the ignition switch is OFF, a short in
the SRS warning light circuit can be considered likely.
Proceed to ºSRS warning light circuit malfunctionº on
page DI±308.
2. DTC CHECK (Using diagnosis check wire)
(a) Present troubles codes:
Output the DTC.
(1) Turn the ignition switch to the ACC or ON position
and wait for approx. 20 seconds.
(2) Using SST, connect terminals Tc and E1 of the
DLC1.
SST 09843±18020
NOTICE:
Pay due attention to the terminal connecting position to
avoid a malfunction.
(b) Past troubles codes:
Output the DTC.
(1) Using service wire, connect Terminals Tc and E1 of
the DLC1.
SST 09843±18020
(2) Turn the ignition switch to the ACC or ON position
and wait for approx. 20 seconds.
NOTICE:
Pay due attention to the terminal connecting position to
avoid a malfunction.

AT0716AB0056H08231
Normal Code
ON
OFF0.25
0.25
Code 11 and 31
ON
OFF
0.5 2.54.0
1.5 0.5
DTC 11
DTC 31Repeat
S05331
TOYOTA Hand±Held Tester
DLC3 DI±224
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
(c) Read the DTC.
Read the 2±digit DTC as indicated by the number of times
the SRS warning light blinks. As an example, the blinking
patterns, normal, 11 and 31 are shown in the illustration.

Normal code indication
The light will blink 2 times per second.

Malfunction code indication
The first blinking output indicates the first digit
of a 2±digit DTC. After a 1.5±second pause,
the second blinking output will indicate the
second digit.
If there are 2 or more codes, there will be a 2.5±second pause
between each code. After all the codes have been output, there
will be a 4.0±second pause and they will all be repeated.
HINT:

In the event of a number of trouble codes, indication will
start from the smallest numbered code.

If a DTC is not output or a DTC is output without terminal
connection, proceed to the Tc terminal circuit inspection
on page DI±313.
3. DTC CHECK (Using TOYOTA hand±held tester)
(a) Hook up the TOYOTA hand±held tester to the DLC3.
(b) Read the DTCs by following the prompts on the tester
screen.
HINT:
Please refer to the TOYOTA hand±held tester operator's manu-
al for further details.
4. DTC CLEARANCE (Not using service wire)
When the ignition switch is turned off, the diagnostic trouble
code is cleared.
HINT:
DTC might not be cleared by turning the ignition switch OFF.
In this case, proceed to the next step.
5. DTC CLEARANCE (Using service wire)
(a) Connect the 2 service wires to terminals Tc and AB of
DLC1.
(b) Turn the ignition switch to ACC or ON and wait for approx.
6 seconds.

H01461
H10313
H10314
ABTerminal
Tc
ABOFF
Body
Ground
OFF
ON
OFF
Several
Seconds50 m sec.
50 m sec.
1 seconds
(± 0.5 sec.)
Tc
Body
Ground
1 seconds
(± 0.5 sec.)
1
23
45
S05331
TOYOTA Hand±Held Tester
DLC3
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±225
(c) Starting with the Tc terminal, ground alternately terminal
Tc and terminal AB twice each in cycles of 1.0 seconds.
Make sure that the terminals are grounded. Ensure the
terminal Tc remain grounded.
HINT:
When alternately grounding terminals Tc and AB, release
ground from one terminal and immediately ground the other ter-
minal within an interval of 0.2 seconds.
If DTCs are not cleared, repeat the above procedure until the
codes are cleared.
(d) Several seconds after doing the clearing procedure, the
SRS warning light will blink in a 50 m sec. cycle to indicate
the codes which have been cleared.
6. DTC CLEARANCE (Using TOYOTA hand±held tester)
(a) Hook up the TOYOTA hand±held tester to the DLC3.
(b) Clear the DTCs by following the prompts on the tester
screen.
HINT:
Please refer to the TOYOTA hand±held tester operation's
manual for further details.

DI±226
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
7. RELEASE METHOD OF AIRBAG ACTIVATION PRE-
VENTION MECHANISM
An airbag activation prevention mechanism is built into the con-
nector for the squib circuit of the SRS.
When release of the airbag activation prevention mechanism is
directed in the troubleshooting procedure as shown in the il-
lustration of the connectors on the next pages, insert paper
which has the same thickness as the male terminal, between
the terminal and the short spring.
CAUTION:
Never release the airbag activation prevention mechanism
on the steering wheel pad connector.
NOTICE:

Do not release the airbag activation prevention mech-
anism unless specifically directed by the trouble-
shooting procedure.

If the inserted paper is too thick the terminal and short
spring may be damaged, so always use paper with
the same thickness as the male terminal.

H02720
Airbag Sensor
AssemblyFront Passenger Airbag
Assembly (Squib)
Steering Wheel
Pad (Squib)
No.1 J/B
Pretensioner (LH) Spiral Cable 2
35 4
67 1
8
9
10
Front Airbag Sensor (RH)
Front Airbag Sensor (LH) 11
Pretensioner (RH)
12
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±227

H01356H01233AB0130AB0045AB0046H02248
H02249 H04511H11583
Airbag Sensor Assembly Connector
Before Release
PaperAfter Release
Before Release
After Release Connector
Short Spring
Short Spring
Paper 1
5Connector
Paper
4
Short Spring7
Short Spring Short Spring
6
2
3
DI±228
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM