Toyota Camry Manual page 1610

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.
Symptom
ABS does not operate.
ABS does not operate efficiently.
ABS warning light abnormal.
DTC check cannot be done.
Speed sensor signal check cannot be done.
TRAC does not operate.
SLIP indicator light abnormal.
TRAC OFF indicator light abnormal.
DIAGNOSTICS – ABS & TRACTION CONTROL SYSTEM
Only when 1. to 4. are all normal and the problem is still
occurring, replace the
ABS & TRAC ECU.
1. Check the DTC reconfirming that the normal code is
output.
2. IG power source circuit
3. Speed sensor circuit
4. Check the ABS & TRAC actuator with a checker. If ab-
normal, check the hydraulic circuit for leakage
(See page DI–623).
Only when 1. to 4. are all normal and the problem is still
occurring, replace the
ABS & TRAC 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 & TRAC actuator with a checker. If ab-
normal, check the hydraulic circuit for leakage
(See page DI–623).
1. ABS warning light circuit
2. ABS & TRAC ECU
Only when 1. and 2. are all normal and the problem is still
occurring, replace the ABS & TRAC ECU.
1. ABS warning light circuit
2. TRAC OFF indicator light circuit
3. Tc terminal circuit
1. Ts terminal circuit
2. ABS & TRAC ECU
Only when inspection circuits for each problem symptom
are all normal and the problem is still occurring, replace the
ABS & TRAC ECU.
1. Check the DTC, reconfirming that the normal code is
output.
2. IG power source circuit
3. Check the hydraulic circuit for leakage
4. Speed sensor circuit
SLIP indicator light circuit
Only when inspection circuits for each problem symptom
are all normal and the problem is still occurring, replace the
ABS & TRAC ECU.
1. TRAC OFF indicator light circuit
2. TRAC cut switch circuit
Suspect Area
Author : Date :
DI–583
DI04I–04
See page
DI–574
DI–598
DI–593
BR–61
DI–574
DI–593
DI–604
BR–61
DI–612
DI–610
DI–612
DI–617
DI–621
DI–615
DI–610
DI–574
DI–598
DI–623
DI–593
DI–620
DI–617
DI–617
818