Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 20ag2 pstd4000

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05-1497
DIAGNOSTICS - TOYOTA PARK ASSIST SYSTEM
05BUX-01

PROBLEM SYMPTOMS TABLE
Symptom Suspect Area See page
1. Power source of clearance warning ECU circuit 05-1510
Entirely inoperative (Self check does not function).
2. Clearance Warning ECU Assy -

1. Back sonar sensor LH circuit 05-1498
Only back sonar does not function (Self check function normally). 2. Back sonar sensor RH circuit 05-1500
3. Clearance Warning ECU Assy -
1. Clearance sonar Front LH circuit 05-1502
2. Clearance sonar Front RH circuit 05-1504
Only clearance sonar does not function (Self check function nor-
3. Clearance sonar rear LH circuit 05-1506
mally).
4. Clearance sonar rear RH circuit 05-1508
5. Clearance Warning ECU Assy -

Although detection can be done, no buzzer sounds sometimes 1. Rear buzzer circuit 05-1513
(Back sonar, Rear clearance sonar). 2. Clearance Warning ECU Assy -

Although detection can be done, no buzzer sounds sometimes 1. Front buzzer circuit 05-1516
(Front clearance sonar). 2. Clearance Warning ECU Assy -

Although detection can be done, the indicator does not light some- 1. Indicator circuit 05-1518
times. 2. Clearance Warning ECU Assy -

1. Back sonar sensor LH circuit 05-1498
2. Back sonar sensor RH circuit 05-1500
3. Clearance sonar Front LH circuit 05-1502
4. Clearance sonar Front RH circuit 05-1504
"Disconnected" or "Frozen" is displayed in the self check function.
5. Clearance sonar rear LH circuit 05-1506
6. Clearance sonar rear RH circuit 05-1508
7. Clearance Warning ECU Assy -
8. Sensor is wetted or frozen -
The system operates with the shift lever not in R position, or does
1. Park/Neutral Position switch signal circuit 05-1521
not operate with the shift lever in R position (Back sonar and rear
2. Clearance Warning ECU Assy -
clearance sonar).
The system operates with the shift lever in P position, or does not
1. Park/Neutral Position switch signal circuit 05-1521
operate with the shift lever not in P position (Front clearance so-
2. Clearance Warning ECU Assy -
nar).

Detection can be done although the vehicle speed is 10km/h (6 1. Speed signal circuit 05-1523
mph) or more. 2. Clearance Warning ECU Assy -

Buzzer volume is too low. 1. Adjust buzzer volume 05-1487

2005 SIENNA REPAIR MANUAL (RM1163U)

Author : Date : 1680

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