DESCRIPTION
This DTC is output when a failure of the automatic light control sensor circuit is detected.
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
B1244 |
When either condition below is met:
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
If the main body ECU (multiplex network body ECU) is replaced, refer to Registration (See page ).*1
PROCEDURE
1. |
CHECK FOR DTC |
(a) Clear the DTC (See page ).
(b) Recheck for DTC (See page ).
OK:
DTC B1244 is not output.
OK |
USE SIMULATION METHOD TO CHECK |
|
2. |
READ VALUE USING TECHSTREAM (LIGHT SENSOR ILLUMINANCE) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Data List.
(e) According to the display on the Techstream, read the Data List.
Main Body
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Light Sensor Illuminance |
Light control sensor illuminance / 0 to 8191 lx |
Value is output according to ambient light level |
- |
OK:
Output illuminance is as shown in table above.
OK |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
|
3. |
CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (LIGHT CONTROL SENSOR VOLTAGE) |
(a) Disconnect the ECU connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
19 (CLTB) - 21 (CLTE) |
Ignition switch ON |
11 to 14 V |
Ignition switch OFF |
Below 1 V |
*a |
Component without harness connected (Main Body ECU (Multiplex Network Body ECU)) |
NG |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
|
4. |
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - AUTOMATIC LIGHT CONTROL SENSOR) |
(a) Disconnect the M6 main body ECU (multiplex network body ECU) connector.
(b) Disconnect the A37 automatic light control sensor connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
M6-19 (CLTB) - A37-1 (CLTB) |
Always |
Below 1 Ω |
M6-20 (CLTS) - A37-4 (CLTS) |
||
M6-21 (CLTE) - A37-2 (CLTE) |
||
M6-19 (CLTB) - Body ground |
Always |
10 kΩ or higher |
M6-20 (CLTS) - Body ground |
||
M6-21 (CLTE) - Body ground |
OK |
REPLACE AUTOMATIC LIGHT CONTROL SENSOR |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Crankshaft Position Sensor "A" Signal Stuck in Range (P03352A,P033531)
DESCRIPTION
The crankshaft position sensor system consists of a crankshaft position sensor
plate and a pickup coil. The crankshaft position sensor plate has 34 teeth and is
installed to the crankshaft. The pickup coil is made of wound copper wire, an iron
core and a magnet. The crankshaft pos ...
Pattern Select Switch Power Mode Circuit
DESCRIPTION
The ECM memory contains the programs for the normal and PWR shift patterns.
By following the programs corresponding to the signals from the pattern select
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Setup menu
You can adjust the multimedia system to your desired settings.
Display “Setup” screen
Press the “SETUP” button to display the “Setup” screen.
Select to adjust the settings for
operation sounds, screen animation, etc.
Select to set the voice settings.
Select to adjust the sett ...