Inspection Procedure
WARNING: This page is about a different variant/trim than selected.
- INSPECT FUSE (4WD FUSE)
- Remove the 4WD fuse from the instrument junction block.
- Measure the resistance of the fuse.
Standard Resistance
STANDARD RESISTANCETester Connection Condition Specified Condition 1 - 2 Always Below 1 Ω HINT:
Check for short circuits in all harnesses and connector connected to the 4WD fuse (See REPAIR INSTRUCTION ).
NG: REPLACE FUSE (4WD)
OK: Go to Next Step
- CHECK WIRE HARNESS (4WD CONTROL ECU - BATTERY)
- Disconnect the ECU connector.
- Measure the voltage of the wire harness side connector.
Standard Voltage
STANDARD VOLTAGETester Connection Condition Specified Condition E17-9(BSLC)-Body Ground Ignition switch ON 10 to 14 V Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to Next Step
- INSPECT ELECTROMAGNETIC CONTROL COUPLING (4WD LINEAR SOLENOID)
- Remove the coupling connector.
- Measure the resistance of the solenoid.
Standard Resistance
STANDARD RESISTANCETester Connection Condition Specified Condition 1 (BSF) - 2 (SLC) Always 2.2 to 2.6 Ω 1 (BSF) - Body ground Always 10 kΩ or higher 2 (SLC) - Body ground Always 10 kΩ or higher Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPLACE ELECTROMAGNETIC CONTROL COUPLING (See DISASSEMBLY )
OK: Go to Next Step
- CHECK WIRE HARNESS (ELECTROMAGNETIC CONTROL COUPLING - 4WD CONTROL ECU)
- Disconnect the ECU connector.
- Measure the resistance of the wire harness side connector.
Standard Resistance
STANDARD RESISTANCETester Connection (4WD Control ECU - 4WD Linear solenoid) Condition Specified Condition E17-13 (SLC+) - 1 (BSF) Always Below 1 Ω E17-32 (SLC-) - 2 (SLC) Always Below 1 Ω E17-13 (SLC+) - Body ground Always 10 kΩ or higher E17-32 (SLC-) - Body ground Always 10 kΩ or higher Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: REPLACE 4WD CONTROL ECU (See REMOVAL )