Power Window Master Switch: Inspection: Inspection
- INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY
- Using an electrical tester, check if the diodes are functioning normally.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Standard resistance
STANDARD RESISTANCETester Connection Switch Position Specified Condition 6 (PW) - 16 (AUTO) AUTO UP Below 50 Ω 6 (PW) - 20 (DUP) 6 (PW) - 20 (DUP) MANUAL UP Below 50 Ω - OFF - 6 (PW) - 11 (DDN) MANUAL DOWN Below 10 Ω 6 (PW) - 16 (AUTO) AUTO DOWN Below 10 Ω 6 (PW) - 11 (DDN) Below 50 Ω - If the result is not as specified, replace the master switch assembly.
- Using an electrical tester, check if the diodes are functioning normally.
HINT:
- As the switch has diodes, a resistance inspection cannot be performed. Use the tester's diode check function to check the diodes.
- Connect the tester's leads as shown in the table below. If the leads are not connected correctly, the readings will not be accurate. Connect the tester's positive (+) lead to the diode's positive (+) side, and the negative (-) lead to the diode's negative (-) side.
- Set the function selector switch to diode check function mode, and check that the diodes are functioning normally.SWITCH POSITION & TESTER CONNECTION
Switch Position Tester Connection
Positive SideTester Connection
Negative SideAUTO UP 3 (DT1) 14 (SC2) 15 (SC3) MANUAL UP 3 (DT1) 14 (SC2) OFF - - MANUAL DOWN 3 (DT1) 13 (SC1) AUTO DOWN 3 (DT1) 13 (SC1) 15 (SC3) Reference voltage (for TOYOTA electrical tester)
Test Lead Specified Condition Normal direction 0.4 to 0.8 V - If the result is not as specified, replace the master switch assembly.
- Check the window lock switch.
Standard resistance
Tester Connection Window Lock Switch Condition Specified Condition 6 (PW) - 7 (W/L) LOCK 10 kΩ or higher 6 (PW) - 7 (W/L) UNLOCK Below 1 Ω - If the result is not as specified, replace the master switch assembly.
- Using an electrical tester, check if the diodes are functioning normally.