DESCRIPTION |
DTC No. | Detection Item |
INF Code | DTC Detection Condition |
Trouble Area | | C14A7 |
ECU Malfunction | 71
72 73 74 |
- INF Code: 71
- INF Code: 72
- Actuator operation driver IC malfunction in ECU
- INF Code: 73
- Actuator operation driver IC operates abnormally even though there is no valid brake request
- INF Code: 74
- When the trailer brake output is excessive while a brake request exists
| Trailer brake control ECU (Brake control with bracket relay) | PROCEDURE
(a) Clear the DTCs. Click here
 (b) Turn the ignition switch off.
(c) Turn the ignition switch to ON. (d) Check if the same DTC is output.
Click here
| Result |
Proceed to | | DTC is output. |
A | | DTCs are not output. |
B |
| A |
 | REPLACE BRAKE CONTROL WITH BRACKET RELAY |
| B |
| USE SIMULATION METHOD TO CHECK | | 
