Inspection Procedure

INSPECT FUSE (D S/HTR)
1. Remove the D S/HTR fuse from the driver side J/B.
2. Measure the resistance.
  Standard: Below 1 Ω
NG: REPLACE FUSE

OK: Go to next step.
CHECK WIRE HARNESS (SEAT CLIMATE CONTROL BLOWER (SEAT CLIMATE CONTROL ECU) - BODY GROUND)
1. Disconnect the C20 blower connector.
2. Measure the voltage of the wire harness side connector.
  Standard:
  
  Fig 1: Terminals Voltage Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 2: Checking Wire Harness (Seat Climate Control Blower (Seat Climate Control ECU) - Body Ground)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: Go to Step 4

OK: Go to next step.
CHECK WIRE HARNESS (SEAT CLIMATE CONTROL BLOWER (SEAT CLIMATE CONTROL ECU) - BODY GROUND)
1. Disconnect the C20 blower connector.
2. Measure the resistance of the wire harness side connector.
  Standard:
  
  Fig 3: Terminals Resistance Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 4: Checking Wire Harness (Seat Climate Control Blower (Seat Climate Control ECU) - Body Ground)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step.

REPLACE CLIMATE CONTROL BLOWER (SEAT CLIMATE CONTROL ECU)
CHECK WIRE HARNESS (DRIVER SIDE J/B - BODY GROUND)
1. Disconnect the DJ J/B connector.
2. Measure the voltage of the J/B terminal.
  Standard:
  
  Fig 5: Terminals Voltage Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 6: Checking Wire Harness (Driver Side J/B - Body Ground)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: Go to step 5

OK: REPAIR OR REPLACE HARNESS AND CONNECTOR (DRIVER SIDE J/B - CLIMATE CONTROL BLOWER (SEAT CLIMATE CONTROL ECU))
CHECK WIRE HARNESS (DRIVER SIDE J/B - BODY GROUND)
1. Disconnect the DA and DF J/B connectors.
2. Measure the voltage of the wire harness side connector.
  Standard:
  
  Fig 7: Terminals Voltage Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 8: Checking Wire Harness (Driver Side J/B - Body Ground)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step.
CHECK WIRE HARNESS (DRIVER SIDE J/B - BODY GROUND)
1. Disconnect the DG J/B connector.
2. Measure the resistance of the wire harness side connector.
  Standard:
  
  Fig 9: Terminals Resistance Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 10: Checking Wire Harness (Driver Side J/B - Body Ground)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step.
INSPECT RELAY (D-IG1)
1. Remove the D-IG1 relay from the driver side J/B.
2. Measure the resistance.
  Standard:
  
  Fig 11: Terminals Resistance Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 12: Inspecting Relay (D-IG1)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPLACE RELAY

OK: REPLACE DRIVER SIDE J/B