DESCRIPTION
The DTC is stored when the main body ECU (driver side junction block assembly) detects malfunctions in the LIN communication system.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B124D |
Malfunction in LIN communication system |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this symptom.
PROCEDURE
1. |
CHECK FOR DTC |
(a) Clear the DTCs (See page ).
(b) Check for DTCs (See page ).
OK:
DTC B124D is not output.
OK |
USE SIMULATION METHOD TO CHECK |
|
2. |
CHECK HARNESS AND CONNECTOR (AFS ECU - INNER REAR VIEW MIRROR ASSEMBLY) |
(a) Disconnect the D44 AFS ECU (headlight swivel ECU assembly) connector.
(b) Disconnect the P12 inner rear view mirror assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D44-10 (SMR) - P12-3 (LIN) |
Always |
Below 1 Ω |
P12-3 (LIN) - Body ground |
Always |
10 kΩ or higher |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
INSPECT AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) |
(a) Reconnect the D44 AFS ECU (headlight swivel ECU assembly) connector.
(b) Connect an oscilloscope to the P12 inner rear view mirror assembly connector. |
|
(c) Check the waveform. OK:
|
|
OK |
REPLACE INNER REAR VIEW MIRROR ASSEMBLY |
NG |
REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) |
Child restraint systems with a top tether strap
Secure the child restraint using
a seat belt or lower anchors, and do the following.
► Outside
Adjust the head restraint to the upmost position.
► Center
Lower the head restraint to the lowest position.
Open the anchor bracket cover, ...
A/C ECU Vehicle Information Reading/Writing Processor Malfunction (B15F5)
DESCRIPTION
This DTC is stored when items controlled by the air conditioning amplifier assembly
cannot be customized via the navigation system vehicle customization screen.
HINT:
The air conditioning amplifier assembly controls the air conditioning system ...
Internal Control Module Monitoring Processor Performance (P060A)
MONITOR DESCRIPTION
The main CPU and sub CPU of the ECM perform data communication between each other.
The main CPU monitors the communications and WDC pulses from the sub CPU. When the
signal malfunctions below are detected, the DTC is output.
...