DTC C1305/21 Solenoid Identification Circuit: Description
WARNING: This page is about a different car, the 2006 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.
The skid control ECU receives solenoid identification signals from terminals SSEL and SEL2. The ECU specifies control characteristics of the brake actuator by monitoring the difference in the holding solenoid (FRA, FLA, RRA and RLA) current, which is caused by characteristics of each actuator.
DIAGNOSIS TROUBLE CODE CHART
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| C1305/21 | Immediately after the engine is started, an open or short in the solenoid characteristics identification circuit continues for 0.21 seconds or more. |
|