Test Mode Procedure

SPEED SENSOR SIGNAL CHECK (NOT USING HAND-HELD TESTER)
HINT:
- If the ignition switch is turned from ON to ACC or LOCK during test mode, DTCs of the sensor check function will be erased.
- During test mode, the skid control ECU records all DTCs of the sensor check function. By performing the sensor signal check, the codes are erased if normality is confirmed. The codes left over are the codes where an abnormality was found.
1. Turn the ignition switch to the ON position.
2. Using SST, connect terminals TS and CG of the DLC3. SST 09843-18040
3. Start the engine.
  
  Fig 1: Connecting Terminals TS And CG Of DLC3
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Check that the ABS warning light blinks.
  HINT:
  
  If the ABS warning light does not blink, inspect the ABS warning light circuit and TS circuit (see ABS WARNING LIGHT CIRCUIT (REMAINS ON) and TS TERMINAL CIRCUIT ).
5. Drive the vehicle straight forward.
  HINT:
  
  Drive the vehicle faster than 28 mph (45 km/h) for several seconds.
6. Stop the vehicle.
  
  Fig 2: ABS Warning Light Blinking Pattern
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
7. Using SST, connect terminals TC and CG of the DLC3. SST 09843-18040
8. Read the number of blinks of the ABS warning light.
HINT:
- See the list of DTC shown on DIAGNOSTIC TROUBLE CODE CHART .
- If every sensor is normal, a normal code is output (A cycle of 0.25 sec. ON and 0.25 sec. OFF is repeated).
- If 2 or more malfunctions are indicated at the same time, the lowest numbered code will be displayed first.
  
  Fig 3: Malfunction Code Blinking Pattern (Example Code 72, 76)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. After doing the check, turn the ignition switch OFF, and remove the SST from the DLC3.
  SST 09843-18040
SPEED SENSOR SIGNAL CHECK (USING HAND-HELD TESTER)
HINT:
- If the ignition switch is turned from ON to ACC or LOCK during test mode, DTCs of the sensor check function will be erased.
- During test mode, the skid control ECU records all DTCs of the sensor check function. By performing the sensor signal check, the codes are erased if normality is confirmed. The codes left over are the codes where an abnormality was found.
1. Connect the hand-held tester to the DLC3.
2. Start the engine.
3. Check that the ABS warning light blinks.
  HINT:
  
  If the ABS warning light does not blink, inspect the ABS warning light circuit and TS circuit (see ABS WARNING LIGHT CIRCUIT (REMAINS ON) and TS TERMINAL CIRCUIT ).
4. Drive the vehicle straight forward.
  HINT:
  
  Drive the vehicle faster than 28 mph (45 km/h) for several seconds.
5. Stop the vehicle.
  
  Fig 4: ABS Warning Light Blinking Pattern
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Read the DTC by following the prompts on the tester screen.
HINT:

Refer to the hand-held tester operator's manual for further details.