Toyota 4Runner: Sliding Roof ECU Power Source Circuit

Toyota 4Runner Service Manual / Vehicle Exterior / Sliding Roof / Convertible / 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 drive gear sub-assembly power source circuit.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

When the sliding roof drive gear sub-assembly (sliding roof ECU) is removed and reinstalled or replaced, the sliding roof drive gear sub-assembly (sliding roof ECU) must be initialized (See page ).

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1.	CHECK HARNESS AND CONNECTOR (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU) - BATTERY AND BODY GROUND)

*a	Front view of wire harness connector (to Sliding Roof Drive Gear Sub-assembly (Sliding Roof ECU))

(a) Disconnect the S10 sliding roof drive gear sub-assembly (sliding roof ECU) connector.

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
S10-8 (B) - Body ground	Always	11 to 14 V
S10-1 (IG) - Body ground	Ignition switch off	Below 1 V
S10-1 (IG) - Body ground	Ignition switch ON	11 to 14 V

Standard Resistance

Tester Connection	Condition	Specified Condition
S10-12 (E) - Body ground	Always	Below 1 Ω

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

REPAIR OR REPLACE HARNESS OR CONNECTOR

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