Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 1998-2003 Approved FSM 05 acsy cidtc21
<< Back | HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
>> Download cidtc21 documenatation <<
Text preview - extract from the document
DI-715
DIAGNOSTICS - AIR CONDITIONING SYSTEM
DI3FB-05
DTC 21 Solar Sensor Circuit
CIRCUIT DESCRIPTION
Resistance of photo diode A photo diode in the solar sensor detects solar radiation and
sends signals to the A/C control assembly.
High
Low
Weak Strong
Strength of solar radiation
DTC No Detection Item Trouble Area
S Solar sensor
Open or short in solar sensor circuit.
S Harness or connector between solar sensor and A/C control
21 Please note that display of diagnostic trouble code 21 is not
assembly
abnormal when the sensor is not receiving solar radiation.
S A/C control assembly
WIRING DIAGRAM
A/C control assembly
15 1
IG1 A23 S5
R-W R-W
1
A28
A/C Solar Sensor
2
14 5
IG1 A23 TS
G-W G-W
I21115
2001 SIENNA (RM787U)
Author : Date : 869
DI-716
DIAGNOSTICS - AIR CONDITIONING SYSTEM
INSPECTION PROCEDURE
1 Check voltage between terminals S5 and TS of A/C control assembly connector.
PREPARATION:
TS S5 Remove A/C control assembly with connectors still connected.
ON
CHECK:
(a) Turn ignition switch to ON.
(b) Measure voltage between terminals S5 and TS of A/C
control assembly connector when the solar sensor is sub-
jected to an electric light, and when the sensor is covered
by a cloth.
(-) (+)
I20986 OK:
Condition Voltage
Sensor subjected to electric light 0.8 - 4.3 V
Sensor covered by a cloth Below 0.8 V
HINT:
As the inspection light is moved away from the sensor, the volt-
age increases.
NG Go to step 2.
OK
Proceed to next circuit inspection shown on problem symptoms table (See page DI-697 ). Howev-
er, if DTC 21 is displayed, check and replace A/C control assembly.
2001 SIENNA (RM787U)
Author : Date : 870
DI-717
DIAGNOSTICS - AIR CONDITIONING SYSTEM
2 Check solar sensor.
PREPARATION:
Remove solar sensor.
CHECK:
(a) Cover the sensor with a cloth.
(b) Measure resistance between terminals 1 and 2 of solar
2 sensor connector.
HINT:
Connect positive (+) lead of ohmmeter to terminal 1 and nega-
1 tive (-) lead to terminal 2 of the solar sensor.
I08308
OK:
Resistance : (no continuity)
PREPARATION:
(a) Remove the cloth from the solar sensor and subject the
sensor to electric light.
(b) Measure resistance.
OK:
Resistance : Approx. 4 k (continuity)
HINT:
As the electric light is moved away from the sensor, the resis-
tance increases.
NG Replace solar sensor.
OK
3 Check harness and connector between A/C control assembly and solar sensor
(See page IN-31 ).
NG Repair or replace harness or connector.
OK
Check and replace A/C control assembly.
2001 SIENNA (RM787U)
Author : Date : 871
◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo