DIAGNOSIS SYSTEM
1. DESCRIPTION
When troubleshooting a vehicle with a diagnosis system, the only difference from the usual troubleshooting procedure is connecting the Techstream to the vehicle and reading various data output from the vehicle's skid control ECU.
The skid control ECU records DTCs when the computer detects a malfunction in the ECU itself or in its circuits.
To check the DTCs, connect the Techstream to the DLC3 on the vehicle. The Techstream can clear the DTCs, activate the various actuators, and check the Freeze Frame Data and Data List.
(a) Check the battery voltage.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, recharge the battery before proceeding to the next step.
(b) Check the DLC3 (See page ).
2. DIAGNOSIS
(a) If the skid control ECU detects a malfunction, the ABS warning, brake warning, slip indicator, and master warning (for vehicle with the master warning light) lights will come on in order to warn the driver.
(b) The DTCs are simultaneously stored in the memory.
The DTCs can be read by connecting SST between terminals TC and CG of the DLC3
and observing the blinking pattern of the ABS warning and slip indicator lights,
or by connecting the Techstream (See page ).
(c) This system has a Test Mode (signal check) function.
The DTCs can be read by connecting SST between terminals TS and CG of the DLC3
and observing the blinking pattern of the ABS warning and slip indicator lights,
or by connecting the Techstream (See page ).
3. WARNING LIGHT AND INDICATOR LIGHT INITIAL CHECK
(a) Release the parking brake.
NOTICE:
Before releasing the parking brake, move the shift lever to P for safety.
HINT:
When the parking brake is applied or the brake fluid level is low, the brake warning light comes on.
(b) When the ignition switch is turned to ON, check that the ABS warning, brake warning, TRAC OFF indicator, VSC OFF indicator and slip indicator lights all come on for approximately 3 seconds.
HINT:
Trouble Area |
See Procedure |
---|---|
ABS warning light circuit (Remains on) |
|
ABS warning light circuit (Does not come on) |
|
Brake warning light circuit (Remains on) |
|
Brake warning light circuit (Does not come on) |
|
TRAC OFF indicator light circuit (Remains on) |
|
TRAC OFF indicator light circuit (Does not come on) |
|
VSC OFF indicator light circuit (Remains on) |
|
VSC OFF indicator light circuit (Does not come on) |
|
Slip indicator light circuit (Remains on) |
|
Slip indicator light circuit (Does not come on) |
|
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
The ECM controls the cruise control system of the vehicle. The data and DTCs
relating to the cruise control system can be read from the DLC3 of the vehicle.
If either DTC or CRUISE OK is not displayed on the multi-informat ...
Precaution
PRECAUTION
1. PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
After the ignition switch is turned off, the radio and display receiver
assembly records various types of memory and settings. As a result, after
turning ...
Brake fluid
- Checking fluid level
The brake fluid level should be between the “MAX” and “MIN” lines on the tank.
Make sure to check the fluid type and prepare the necessary items.
- Adding fluid
- Brake fluid can absorb moisture from the ...