DTC U2300:56 [AUTO LEVELING CONTROL MODULE]

id090277132500

Outline

System malfunction location

Configuration data unmatched with body control module (BCM)

Detection condition

•  Configuration data of the auto leveling control module and body control module (BCM) are not matched.

Fail-safe

•  Control of the headlight auto leveling system is continued.

Possible cause

Note

•  To correctly write the configuration data sent from the body control module (BCM) to the auto leveling control module, 30 s or more have to be elapsed since the ignition is switched ON (engine off or on).

•  DTCs are stored in the body control module (BCM).

―  Body control module (BCM) configuration not implemented

―  Body control module (BCM) internal memory malfunction

•  Body control module (BCM) configuration data error

•  Auto leveling control module malfunction

System wiring diagram

Not applicable

Connector diagram

Not applicable

System malfunction location	Configuration data unmatched with body control module (BCM)
Detection condition	• Configuration data of the auto leveling control module and body control module (BCM) are not matched.
Fail-safe	• Control of the headlight auto leveling system is continued.
Possible cause	Note • To correctly write the configuration data sent from the body control module (BCM) to the auto leveling control module, 30 s or more have to be elapsed since the ignition is switched ON (engine off or on). • DTCs are stored in the body control module (BCM). ― Body control module (BCM) configuration not implemented ― Body control module (BCM) internal memory malfunction • Body control module (BCM) configuration data error • Auto leveling control module malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1

VERIFY BODY CONTROL MODULE (BCM) DTCs

•  Perform the DTC inspection for the body control module (BCM).
(See DTC INSPECTION.)

•  Is a DTC displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [BODY CONTROL MODULE (BCM) (E)].)

No

Go to the next step.

2

RESET CONFIGURATION DATA FOR BODY CONTROL MODULE (BCM)

•  Using the M-MDS, perform the body control module (BCM) configuration.
(See CONFIGURATION.)

•  Clear the DTC recorded in the memory.
(See CLEARING DTC.)

•  Switch the ignition ON (engine off or on) and wait for 30 s or more.

•  Perform the DTC inspection for the auto leveling control module.
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].)

If the CAN communication is normal, replace the auto leveling control module and perform the repair completion verification.

(See AUTO LEVELING CONTROL MODULE REMOVAL/INSTALLATION [(E)].)

No

Go to the next step.

Repair completion verification

VERIFY IF OTHER DTC IS DISPLAYED

•  Perform the DTC inspection.
(See DTC INSPECTION.)

•  Are any other DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	VERIFY BODY CONTROL MODULE (BCM) DTCs • Perform the DTC inspection for the body control module (BCM). (See DTC INSPECTION.) • Is a DTC displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [BODY CONTROL MODULE (BCM) (E)].)
1		No	Go to the next step.
2	RESET CONFIGURATION DATA FOR BODY CONTROL MODULE (BCM) • Using the M-MDS, perform the body control module (BCM) configuration. (See CONFIGURATION.) • Clear the DTC recorded in the memory. (See CLEARING DTC.) • Switch the ignition ON (engine off or on) and wait for 30 s or more. • Perform the DTC inspection for the auto leveling control module. (See DTC INSPECTION.) • Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) If the CAN communication is normal, replace the auto leveling control module and perform the repair completion verification. (See AUTO LEVELING CONTROL MODULE REMOVAL/INSTALLATION [(E)].)
2		No	Go to the next step.
Repair completion verification	VERIFY IF OTHER DTC IS DISPLAYED • Perform the DTC inspection. (See DTC INSPECTION.) • Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
Repair completion verification		No	DTC troubleshooting completed.