DTC C0051:86 [ADAPTIVE LED HEADLIGHTS CONTROL MODULE]

id1502c1001800

Description

Error steering angle signal received from electric power steering (EPS) control module
Detection condition
•  Either a condition in which the steering angle sensor has a malfunction and the electric power steering (EPS) control module has not performed steering angle neutral position auto learning, or a condition in which the electric power steering (EPS) control module has a malfunction is detected for 5 s or more.
Fail-safe
•  When the setting is on using the personalization feature, the headlights HI turn on. (When setting is off using personalization feature, headlight HI illumination on/off depends on control by front body control module (FBCM))
•  Control of the headlight auto leveling system is continued.
Possible cause
•  DTCs are stored in the start stop unit.
•  DTCs are stored in the electric power steering (EPS) control module.
•  Electric power steering (EPS) control module malfunction
•  Adaptive LED headlights control module malfunction
System wiring diagram
Not applicable

Diagnostic Procedure

Step

Inspection

Action
1
VERIFY START STOP UNIT DTCs
•  Retrieve the start stop unit DTCs using the M-MDS.
•  Is the DTC displayed?
Yes
Repair the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [START STOP UNIT].)
No
Go to the next step.
2
VERIFY ELECTRIC POWER STEERING (EPS) CONTROL MODULE DTCs
•  Retrieve the electric power steering (EPS) control module DTCs using the M-MDS.
•  Is the DTC displayed?
Yes
Repair the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [ELECTRIC POWER STEERING (EPS)].)
No
Go to the next step.
3
VERIFY IF MALFUNCTIONING LOCATION IS ELECTRIC POWER STEERING (EPS) CONTROL MODULE DEPENDING ON REPEATABILITY
•  Clear the adaptive LED headlights control module DTCs using the M-MDS.
•  Switch the ignition ON (engine off or on) and wait for 5 s or more.
•  Retrieve the adaptive LED headlights control module DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Replace the electric power steering (EPS) control module, then go to the next step.
(See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)
No
Go to Step 5.
4
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Clear the adaptive LED headlights control module DTCs using the M-MDS.
•  Switch the ignition ON (engine off or on) and wait for 5 s or more.
•  Retrieve the adaptive LED headlights control module DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Replace the adaptive LED headlights control module, then go to the next step.
(See ADAPTIVE LED HEADLIGHTS CONTROL MODULE REMOVAL/INSTALLATION.)
No
Go to the next step.
5
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [ADAPTIVE LED HEADLIGHTS CONTROL MODULE].)
No
DTC troubleshooting completed.