Lighting (Ext). Turn Signal Flasher Assembly (For Sedan) On-Vehicle Inspection

Vehicle Exterior. Yaris. Ncp93, 131

Lighting (Ext). Yaris. Ncp93, 131

INSPECT TURN SIGNAL FLASHER CIRCUIT

Turn Signal Flasher Assembly (For Sedan) -- On-Vehicle Inspection

1. INSPECT TURN SIGNAL FLASHER CIRCUIT

Check the power source circuit and ground circuit.
1. Remove the turn signal flasher relay from the main body ECU.
2. Measure the voltage and check the results in accordance with the value(s) in the table below.
  Standard Voltage:
  Tester Connection
  Condition
  Specified Condition
  1 - Body ground
  Ignition switch OFF
  0 V
  1 - Body ground
  Ignition switch ON
  11 to 14 V
  4 - Body ground
  Always
  11 to 14 V
3. Measure the resistance and check the result in accordance with the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  7 - Body ground
  Always
  Below 1 Ω

Check the output operation signal.

Install the turn signal flasher relay onto the main body ECU.

Measure the voltage and check the results in accordance with the values in the table below.

Standard:

Tester Connection	Condition	Specified Condition
4A-27 - Body ground	Hazard warning switch OFF → ON	0 V → 11 to 14 V (60 to 120 times per minute)
4A-27 - Body ground	Turn signal switch (left turn) OFF → ON	0 V → 11 to 14 V (60 to 120 times per minute)
4A-28 - Body ground	Hazard warning switch OFF → ON	0 V → 11 to 14 V (60 to 120 times per minute)
4A-28 - Body ground	Turn signal switch (right turn) OFF → ON	0 V → 11 to 14 V (60 to 120 times per minute)
4B-14 - Body ground	Hazard warning switch OFF → ON	0 V → 11 to 14 V (60 to 120 times per minute)
4B-14 - Body ground	Turn signal switch (left turn) OFF → ON	0 V → 11 to 14 V (60 to 120 times per minute)
4B-31 - Body ground	Hazard warning switch OFF → ON	0 V → 11 to 14 V (60 to 120 times per minute)
4B-31 - Body ground	Turn signal switch (right turn) OFF → ON	0 V → 11 to 14 V (60 to 120 times per minute)
4S-11 - Body ground	Turn signal switch (left turn) OFF → ON	11 to 14 V → 0 V
4S-12 - Body ground	Turn signal switch (right turn) OFF → ON	11 to 14 V → 0 V
4S-13 - Body ground	Hazard warning switch OFF → ON	0 V → 11 to 14 V (60 to 120 times per minute)
4S-13 - Body ground	Turn signal switch (left turn) OFF → ON	0 V → 11 to 14 V (60 to 120 times per minute)
4S-16 - Body ground	Hazard warning switch OFF → ON	0 V → 11 to 14 V (60 to 120 times per minute)
4S-16 - Body ground	Turn signal switch (right turn) OFF → ON	0 V → 11 to 14 V (60 to 120 times per minute)
4S-17 - Body ground	Hazard warning switch OFF → ON	11 to 14 V → 0 V