Rear Sunshade does not Operate with Rear Sunshade Switch

SYSTEM DESCRIPTION

When the rear sunshade switch is pressed, a signal is sent directly to the rear sunshade relay.

WIRING DIAGRAM

INSPECTION PROCEDURE

1. INSPECT FUSE (LH-IG)

1. Remove the LH-IG fuse from the cowl side junction block LH.

2. Measure the resistance of the fuses.

   Standard resistance:

   Below 1 Ω
   

NG	REPLACE FUSE

OK

2. CHECK WIRE HARNESS (COWL SIDE JUNCTION BLOCK LH - RELAY, BATTERY AND BODY GROUND)

1. Disconnect the Q24 relay connector.

2. Disconnect the Q2 cowl side junction block LH connector.

3. Disconnect the J12 rear sunshade switch connector.

4. Measure the resistance of the wire harness side connectors.

   Standard resistance:

   Tester Connection	Specified Condition
   REV (Q24-2) - OP02 (Q2-20)	Below 1 Ω
   SW (Q24-3) - J12-3	Below 1 Ω
   E (Q24-5) - Body ground	Below 1 Ω
   REV (Q24-2) - E (Q24-5)	10 kΩ or higher
   SW (Q24-3) - E (Q24-5)	10 kΩ or higher

5. Turn the engine switch on (IG).

6. Measure the voltage of the wire harness side connector.

   Standard voltage:

   Tester Connection	Specified Condition
   IG (Q24-1) - Body ground	10 to 14 V

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

3. INSPECT REAR SUNSHADE SWITCH

1. Disconnect the connector from the rear sunshade switch.

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

   Standard resistance:

   Tester connection	Condition	Specified condition
   J12-3 (ECU) - J12-4 (E)	Rear sunshade switch is pressed	Below 1 Ω
   J12-3 (ECU) - J12-4 (E)	Rear sunshade switch is not pressed	10 kΩ or higher

NG	REPLACE REAR SUNSHADE SWITCH

OK
REPLACE REAR SUNSHADE RELAY