toyota_corolla_20012007_obsluga_i_naprawa cz 1.pdf

05–294

DIAGNOSTICS

–

ABS WITH EBD SYSTEM (April, 2003)

HOW TO PROCEED WITH TROUBLESHOOTING

057U7–04

Vehicle Brought to Workshop

Customer Problem Analysis (See page 05–296 )

Check and Clear DTCs and Freeze Frame Data (See page 05–297 )

Problem Symptom Confirmation

Symptom does not occur: Go to step 5

Symptom occurs: Go to step 6

Symptom Simulation (See page 01–30 )

DTC Check (See page 05–297 )

There is no output: Go to step 7

There is output: Go to step 8

Problem Symptoms Table (See page 05–307 )

Check for fluid leakage and Go to step 10

DTC Chart (See page 05–303 )

Circuit Inspection (See page 05–308 – 05–343 )

HINT:

When 2 or more DTC’s are recorded, and the problem is not identified, perform circuit inspection of the other

DTC’s.

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DIAGNOSTICS

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ABS WITH EBD SYSTEM (April, 2003)

Identification of Problem

Repair

Comfirmation Test

End

HINT:

Step 3, 6, 9, 12:

Diagnostic steps permitting the use of the hand–held tester.

Fail safe function:

When a failure occurs in the ABS system, the ABS warning light is lit and the ABS operation is prohibited.

In addition to this, when the failure which disables the EBD operation occurs, the brake warning light is lit

as well and the EBD operation is prohibited.

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DIAGNOSTICS

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ABS WITH EBD SYSTEM (April, 2003)

CUSTOMER PROBLEM ANALYSIS CHECK

057U8–04

ABS Check Sheet

Inspector’s

Name

Registration No.

Customer’s Name

Registration Date

/ /

Frame No.

Date Vehicle

Brought In

/ /

Odometer Reading

k miles

Date Problem First Occurred

/ /

Frequency the Problem Occurs

Continuously

Intermittently ( times a day)

ABS does not operate.

ABS does not operate efficiently.

Symptoms

ABS Warning Light

Abnormal

Remains ON

Does not Light Up

Brake Warning

Light Abnormal

Remains ON

Does not Light Up

1st Time

Normal Code

Malfunction Code (Code )

DTC Check

2nd Time

Normal Code

Malfunction Code (Code )

STOP LIGHT SW

OFF

SYSTEM

NO SYS

ABS

FAIL SF

Freeze Frame Data

#IG ON

VEHICLE SPD

MPH

km/h

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DIAGNOSTICS

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ABS WITH EBD SYSTEM (April, 2003)

PRE–CHECK

1. DIAGNOSIS SYSTEM

(a) Release the parking brake lever.

(b) Check the warning lights.

When the ignition switch is turned ON, check that the ABS

warning light and brake warning light goes on for 3 sec.

057U9–04

HINT:

When the parking brake is applied or the level of the brake

fluid is low, the brake warning light is lit.

C92542

If the indicator check result is not normal, proceed to trou-

bleshooting for the ABS warning light circuit (See page

05–332 or 05–335 ) or brake warning light circuit (See

page 05–338 ).

Check the DTC.

(1) Using SST, it connects terminal Tc and CG of DLC3.

SST 09843–18040

(2) Turn the ignition switch to ON.

(3) Read the DTC from the ABS warning light on the

combination meter.

C52361

HINT:

If not code appears, inspect the diagnostic circuit or ABS

warning light circuit (See page 05–332 or 05–335 ).

As an example, the blinking patterns for normal code and

codes 11 and 21 are shown on the left.

(4) Codes are explained in the code table on page

05–303 .

If 2 or more malfunctions are indicated at the same time, the

lowest numbered DTC will be displayed 1st.

(5) After completing the check, remove the SST from

the DLC3.

SST 09843–18040

(d) In case of using hand–held tester:

Check the DTC.

(1) Read the DTC by following the prompts on the tes-

ter screen.

Normal Code

2 sec.

0.25 sec.

OFF

Code 11 and 21

0.5 sec.

1.5 sec.

0.5 sec.

4 sec.

2.5 sec.

HINT:

Please refer to the hand–held tester operator’s manual for fur-

ther details.

(e) In case of not using hand–held tester:

Clear DTC.

(1) Using SST, it connects the terminal Tc and CG of the

DLC3.

SST 09843–18040

(2) Turn the ignition switch to ON.

OFF

Code 11

Code 21

R01346

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DIAGNOSTICS

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ABS WITH EBD SYSTEM (April, 2003)

(3) Clear DTC stored in ECU by depressing the brake

pedal 8 or more times whitin 5 sec.

(4) Check that the ABS warning light shows the normal

code.

(5) Remove the SST from the DLC3.

SST 09843–18040

BR3890

HINT:

Disconnect the battey cable during repairs will not erase the

DTC in the ECU.

(f) In case of using hand–held tester:

Clear the DTC.

(1) Turn the ignition switch to ON.

(2) Operate the hand–held tester to erase the codes.

HINT:

Please refer to the hand–held tester operator’s manual for fur-

ther details.

DATA LIST

HINT:

According to the DATA LIST displayed by the Hand–held tester, you can read the value of the switch, sensor,

actuator and so on without parts removal. Reading the DATA LIST as a first step of troubleshooting is one

of the method to shorten the labor time.

(a) Connect the Hand–held tester to the DLC3.

(b) Turn the ignition switch to ON.

Item

Measurement Item /

Range (Display)

Normal Condition

Diagnostic Note

ABS MOT RELAY

ABS motor relay / ON or

OFF

SOL RELAY

Solenoid relay / ON or

OFF

STOP LIGHT SW

Stop light switch / ON or

OFF

ON : Brake pedal de-

pressed

OFF : Brake pedal re-

leased

PKB SW

Parking brake switch / ON

or OFF

ON : Parking brake applied

OFF : Parking brake re-

leased

ABS OPERT FR

ABS operation (FR) / BE-

FORE or OPERATE

BEFORE : No ABS opera-

tion (FR)

OPERATE : During ABS

operation (FR)

ABS OPERT FL

ABS operation (FL) / BE-

FORE or OPERATE

BEFORE : No ABS opera-

tion (FL)

OPERATE : During ABS

operation (FL)

ABS OPERT RR

ABS operation (RR) / BE-

FORE or OPERATE

BEFORE : No ABS opera-

tion (RR)

OPERATE : During ABS

operation (RR)

ABS OPERT RL

ABS operation (RL) / BE-

FORE or OPERATE

BEFORE : No ABS opera-

tion (RL)

OPERATE : During ABS

operation (RL)

2004 COROLLA (RM1037U)

Author: Date:

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