Fail-Safe Table
Precautions: Precautions for Headlight Auto Leveling System Service · Precautions for Body, Cab and Accessories · General safety (00)
LED Headlight System
| DTC | DTC name | Fail-safe operation |
|---|---|---|
B1957 
|
Right Side Headlight Control Circuit / Open | — |
| B1958
|
Left Side Headlight Control Circuit / Open | — |
Headlight Auto Leveling System
When any of the following DTCs is detected, headlight auto leveling control module enters the fail-safe mode as long as malfunction continues, but that mode is canceled when headlight auto leveling control module recovers normal condition.
| DTC | DTC name | Fail-safe operation |
|---|---|---|
| B1950
|
Control Module Programming Error | Headlight auto leveling control module stops headlight leveling actuator operation. |
| B1951
|
Ignition Power Supply Voltage Data Malfunction | |
| B1956
|
Rear Height Sensor Error | Headlight auto leveling control module stops headlight leveling actuator operation. |
| B1967
|
Lack of Height Sensor Initial Setting | |
| B1970
|
Wheel Speed Sensor and/or Its Circuit Malfunction | |
| U0073
|
Control Module Communication Bus Off | |
| U0100
|
Lost Communication With ECM |