Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: When replacing the brake actuator assembly, perform zero point calibration (See CALIBRATION ).

CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED
1. Check if the skid control ECU connector is securely connected.
  OK: The connector should be securely connected.
NG: CONNECT CONNECTOR TO ECU CORRECTLY

OK: Go to Next Step
CHECK BATTERY
1. Check the battery voltage.
  Standard voltage:
  
  11 to 14 V
NG: CHECK OR REPLACE CHARGING SYSTEM OR BATTERY

OK: Go to Next Step

INSPECT SKID CONTROL ECU (IG1 TERMINAL)

Disconnect the skid control ECU connector.

Fig 1: Identifying Terminals Of S1 Skid Control ECU Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Turn the ignition switch to the ON position.

Measure the voltage according to the value(s) in the table below.

Standard voltage

TERMINALS VOLTAGE CHART

Tester Connection	Condition	Specified Condition
S1-46(IG1) - Body ground	Ignition switch ON	10 to 14 V

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (IG1 CIRCUIT)

OK: Go to Next Step

INSPECT SKID CONTROL ECU (GND TERMINAL)

Turn the ignition switch off.

Measure the resistance according to the value(s) in the table below.

Standard resistance

TERMINALS RESISTANCE CHART

Tester Connection	Condition	Specified Condition
S1-32(GND1) - Body ground	Always	Below 1 Ω
S1-1 (GND2) - Body ground	Always	Below 1 Ω

Fig 2: Identifying Terminals Of S1 Skid Control ECU Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (GND CIRCUIT)

OK: Go to Next Step

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER)

Disconnect the combination meter connector.

Fig 3: Identifying Terminals Of S1 Skid Control ECU And Combination Meter Connectors

Measure the resistance according to the value(s) in the table below.

Standard resistance

TERMINALS RESISTANCE CHART

Tester Connection	Condition	Specified Condition
S1-29(WA) - C8-2(ESC)	Always	Below 1 Ω
S1-29(WA) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step

INSPECT COMBINATION METER ASSEMBLY
1. Reconnect the skid control ECU connector and the combination meter connector.
2. Check the combination meter (See HOW TO PROCEED WITH TROUBLESHOOTING ).
  OK: The combination meter is normal.
  
  HINT:
  
  If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step (See PROBLEM SYMPTOMS TABLE ).
NG: REPLACE COMBINATION METER ASSEMBLY

OK: REPLACE BRAKE ACTUATOR ASSEMBLY