SLIDING ROOF SYSTEM - Sliding Roof ECU Power Source Circuit

DESCRIPTION

If the sliding function and tilt function do not operate, there may be a malfunction in the sliding roof ECU power source circuit.

Sliding Roof System - Sliding Roof Ecu Power Source Circuit. SLIDING ROOF / CONVERTIBLE. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

1.READ VALUE USING INTELLIGENT TESTER (IGNITION SWITCH SIGNAL)

Use the Data List to check if the ignition switch signal is functioning properly ().

Sliding Roof
Tester Display	Test Part	Control Range	Diagnostic Note
Ignition (MPX)	Ignition switch signal (MPX signal)/ON or OFF	ON: Engine switch on (IG) OFF: Engine switch off	-
Ignition (Direct Signal)	Ignition switch signal/ON or OFF	ON: Engine switch on (IG) OFF: Engine switch off	-

OK:
The intelligent tester displays as shown in the table according to the operation of each switch.

NG

OK

REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU) ()

2.INSPECT FUSE (S/ROOF, ECU-IG NO. 2)

Remove the S/ROOF and ECU-IG NO. 2 fuses from the main body ECU.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
S/ROOF fuse Always Below 1 Ω
ECU-IG NO. 2 fuse Always Below 1 Ω

NG

REPLACE FUSE

OK

3.CHECK HARNESS AND CONNECTOR (SLIDING ROOF DRIVE GEAR - BATTERY AND BODY GROUND)

Disconnect the R5 drive gear connector.

Measure the resistance and voltage according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
R5-2 (E) - Body ground Always Below 1 Ω
Standard Voltage:
Tester Connection Switch Condition Specified Condition
R5-1 (B) - Body ground Always 11 to 14 V
R5-5 (IG) - Body ground Engine switch off Below 1 V
R5-5 (IG) - Body ground Engine switch on (IG) 11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU) ()