Test Mode Procedure
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM (for BOSCH Made): TEST MODE PROCEDURE
1. WARNING LIGHT AND INDICATOR LIGHT INITIAL CHECK
(a) Release parking brake.
NOTICE:
Before releasing parking brake, move the shift lever to P for safety (Automatic Transaxle model) or set the chocks to hold the vehicle for safety (Manual Transaxle model).
HINT
When parking brake is applied or the level of the brake fluid is low, the BRAKE warning light comes on.
(b) When the ignition switch is turned on (IG), check that the ABS warning, BRAKE warning, TRAC OFF indicator, VSC OFF indicator and SLIP indicator lights come on for approximately 3 seconds.
HINT
* If the skid control ECU stores any DTCs, the ABS warning, BRAKE warning and SLIP indicator lights will come on.
* If any of the indicators remain on or do not come on, proceed to troubleshooting for the light circuits listed below.
2. SENSOR SIGNAL CHECK BY TEST MODE (SIGNAL CHECK) (When Using the Techstream)
HINT
DTCs are stored if any malfunctions are detected during each sensor check.
(a) Procedure to enter Test Mode.
(1) Turn the ignition switch off.
(2) Check that the steering wheel is centered.
(3) Check that the shift lever is in P (Automatic Transaxle) or apply parking brake (Manual Transaxle).
(4) Connect the Techstream to the DLC3.
(5) Turn the ignition switch on (IG).
(6) Turn the Techstream on.
(7) Set the Techstream to Test Mode (select "Signal Check").
HINT
Refer to the Techstream operator's manual for further details.
(8) Check that the ABS warning and SLIP indicator lights come on for several seconds and then blink in Test Mode.
HINT
* The TRAC OFF indicator light remains on during Test Mode because TRAC is prohibited.
* If the ABS warning and SLIP indicator lights do not blink, inspect the TS and CG terminal circuit and ABS warning and SLIP indicator light circuits.
(9) Check the ABS sensor.
HINT
Check that the ABS warning light is blinking in the Test Mode blinking pattern before performing the ABS sensor check.
(b) Speed Sensor Check
(1) Drive the vehicle straight ahead.
Accelerate the vehicle to a speed of 45 km/h (28 mph) or more for several seconds.
(2) Check that the ABS warning light goes off when the brake pedal is depressed.
HINT
* The sensor check may not be completed if wheelspin occurs, or if the steering wheel is turned during this check.
* The ABS warning light goes off when the sensor signal check has been completed and the brake pedal is depressed.
* The ABS warning light comes on immediately after a malfunction has been detected during the speed sensor check.
(c) Stop the vehicle.
NOTICE:
* The speed sensor check may not be completed if the speed sensor check is started while turning the steering wheel or spinning the wheels.
* If the sensor check has not been completed, the ABS warning light blinks while driving and the ABS system does not operate.
HINT
When the sensor check has been completed, the ABS warning light goes off while driving and blinks in the Test Mode pattern while stationary.
(d) Read Sensor Check DTCs
(1) Read the DTC(s) by following the Techstream screen.
NOTICE:
* If only DTCs other than Test Mode sensor check DTCs are displayed, repair the malfunctions and clear the DTCs.
* If Test Mode sensor check DTCs and other DTCs are displayed or if only Test Mode sensor check DTCs are displayed, repair the malfunctions, clear the DTCs, and perform Test Mode inspection again.
HINT
See DTCS OF TEST MODE (SIGNAL CHECK) FUNCTION (Procedure "A").
3. SENSOR SIGNAL CHECK BY TEST MODE (SIGNAL CHECK) (When not Using the Techstream)
HINT
DTCs are stored if any malfunctions are detected during each sensor check.
(a) Procedure to enter Test Mode.
(1) Turn the ignition switch off.
(2) Check that the steering wheel is centered.
(3) Check that the shift lever is in P (Automatic Transaxle) or apply parking brake (Manual Transaxle).
(4) Using SST, connect terminals TS and CG of the DLC3.
SST : 09843-18040
(5) Turn the ignition switch on (IG).
(6) Check that the ABS warning and SLIP indicator lights come on for several seconds and then blink in Test Mode.
HINT
* The TRAC OFF indicator light remains on during Test Mode because TRAC is prohibited.
* If the ABS warning and SLIP indicator lights do not blink, inspect the TS and CG terminal circuit and ABS warning and SLIP indicator light circuits.
(7) Check the ABS sensor.
HINT
Check that the ABS warning light is blinking in the Test Mode blinking pattern before performing the ABS sensor check.
(b) Speed Sensor Check
(1) Drive the vehicle straight ahead.
Accelerate the vehicle to a speed of 45 km/h (28 mph) or more for several seconds.
(2) Check that the ABS warning light goes off when the brake pedal is depressed.
HINT
* The sensor check may not be completed if wheelspin occurs, or if the steering wheel is turned during this check.
* The ABS warning light goes off when the sensor signal check has been completed and the brake pedal is depressed.
* The ABS warning light comes on immediately after a malfunction has been detected during the speed sensor check.
(c) Stop the vehicle.
NOTICE:
* The speed sensor check may not be completed if the speed sensor check is started while turning the steering wheel or spinning the wheels.
* If the sensor check has not been completed, the ABS warning light blinks while driving and the ABS system does not operate.
HINT
When the sensor check has been completed, the ABS warning light goes off while driving and blinks in the Test Mode pattern while stationary.
(d) Read Sensor Check DTCs.
(1) Using SST, connect terminals TC and CG of the DLC3.
SST : 09843-18040
(e) Count the number of blinks of the ABS warning and SLIP indicator lights.
HINT
* How to read DTCs:
* Diagnostic trouble codes are represented by the number of blinks of a warning light. For example, code 21 would be shown by 2 blinks, a pause of 1.5 seconds, and then 1 blink.
* If one code is detected:
* The light repeats the same code after a pause of 4 seconds.
* If multiple codes are detected:
* The light outputs one code after another with a 2.5-second pause between each code. When all codes have been output, there is a 4-second pause and then the light begins to output the codes again.
NOTICE:
* If only DTCs other than Test Mode sensor check DTCs are displayed, repair the malfunctions and clear the DTCs.
* If Test Mode sensor check DTCs and other DTCs are displayed or if only Test Mode sensor check DTCs are displayed, repair the malfunctions, clear the DTCs, and perform Test Mode inspection again,
HINT
* If more than 1 malfunction is detected at the same time, the lowest numbered code will be displayed first.
* See DTCS OF TEST MODE (SIGNAL CHECK) FUNCTION (Procedure "A").
(f) After performing the check, disconnect SST from terminals TS and CG, and TC and CG of the DLC3, and turn the ignition switch off.
(g) Turn the ignition switch on (IG) to cancel the Test Mode.
HINT
* If the ignition switch is not turned on (IG) after SST is removed from the DLC3, the previous Test Mode will continue.
* If the ignition switch is turned on (IG) with terminals TS and CG connected, the previous Test Mode will continue.
4. DTCS OF TEST MODE (SIGNAL CHECK) FUNCTION (Procedure "A")
DTC of Test Mode (Signal Check)
HINT
The codes in this table are output only in Test Mode (signal check).
5. ENGINE VARIANT LEARNING
* Engine variant learning is automatically performed immediately after Test Mode is entered.
* The ABS, BRAKE warning and SLIP indicator lights come on for 3 seconds after learning.
6. VSC OFF SWITCH CHECK
(a) Check that the TRAC OFF indicator light comes on and VSC OFF indicator light goes off.
(b) Press the VSC OFF switch.
(c) Check that the TRAC OFF indicator light goes off.
(d) Press and hold the VSC OFF switch for 3 seconds or more.
(e) Check that the TRAC OFF indicator and VSC OFF indicator lights come on.