
05-1518
DIAGNOSTICS - TOYOTA PARK ASSIST SYSTEM 05BV7-02
INDICATOR CIRCUIT
WIRING DIAGRAM
Printed Wire Integration Board Sub-assy (*1) Air Conditioner C9
Integration Panel sub-assy (*2) Amplifier Assy Clearance Warning ECU Assy
7(*1) 1 (*2)
BK L-B 5 L5
A11 A10
9(*1) 16(*2) O
RL 6 L3
A11 A10
4 (*1) 14 (*2)
FL P 18 L4
A11 A10
3(*1) 13(*2)
FR V-R 19 L2
A11 A10
8(*1) 15 (*2) R-L
RR 20 L1
A11 A10
5(*1) 2(*2) BR-W
OP A11 A10 17 L6
12 7 E
(*1) IG 40 W-B
J18
A9 A9
(*2) IG+ J/C
(*1) (*2)
From 121 (*1)
Battery 111 (*2) 1
W-B
IE
*1: Auto A/C
*2: Except *1
I35092
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1701
05-1519
DIAGNOSTICS - TOYOTA PARK ASSIST SYSTEM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR(CLEARANCE WARNING ECU ASSY - AIR
CONDITIONER AMPLIFIER ASSY)
(a) Check for an open or short circuit in harness and connector between the clearance warning ECU assy
and air conditioner amplifier assy (See page 01-37 ).
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
2 INSPECT INDICATOR
Auto A/C: (a) Remove the integration control & panel assy with connec-
tors being connected.
(b) Using a service wire, ground the each terminal of the in-
tegration control & panel assy connector.
(c) Turn the ignition switch ON.
(d) Check each LED comes on.
OP FL FR Indicators that come on
The terminals to which the
service wire connects
Power indicator OP
BK Back sonar BK
Clearance sonar front RH FR
Clearance sonar front LH FL
RL RR Clearance sonar rear RH RR
Clearance sonar rear LH RL
I35049
Result:
OK A
Manual A/C:
NG B (Auto A/C)
NG C (Manual A/C)
OP
BK
FR
FL
RL RR B Go to step 3
I35047
C Go to step 4
A
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
(See page 05-1497 )
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1702
05-1520
DIAGNOSTICS - TOYOTA PARK ASSIST SYSTEM
3 INSPECT PRINTED WIRE INTEGRATION BOARD SUB-ASSY
(a) Check that the malfunction disappears when a proper printed wire integration board sub-assy is
installed (See page 55-23 ).
Standard: Malfunction disappears
NG REPLACE AIRCONDITIONER AMPLIFIER ASSY
(See page 55-23 )
OK
REPLACE PRINTED WIRE INTEGRATION BOARD SUB-ASSY (See page 55-23 )
4 INSPECT INTEGRATION PANEL SUB-ASSY
(a) Check that the malfunction disappears when a good integration panel sub-assy is installed (See page
55-23 ).
Standard: Malfunction disappears
NG REPLACE AIRCONDITIONER AMPLIFIER ASSY
(See page 55-23 )
OK
REPLACE INTEGRATION PANEL SUB-ASSY (See page 55-23 )
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1703