DTC DETECTION LOGIC
| DTC No. |
CONSULT screen items (Trouble diagnosis content) | DTC detection condition | ||
|---|---|---|---|---|
| C1A27-97 |
ECD PWR SUPLY CIR (ECD power supply circuit) |
Diagnosis condition |
|
|
| Signal (terminal) | — | |||
| Threshold | ECD system power supply voltage is excessively low | |||
| Diagnosis delay time | 60 second or more | |||
POSSIBLE CAUSE
ABS actuator and electric unit (control unit) power supply circuit
ABS actuator and electric unit (control unit)
FAIL-SAFE
The following systems are canceled:
Vehicle-to-vehicle distance control mode
Conventional (fixed speed) cruise control mode
Automatic Emergency Braking (AEB) with pedestrian detection
Automatic Emergency Braking (AEB)
Intelligent Forward Collision Warning (I-FCW)
Rear Automatic Braking (RAB)
CHECK DTC PRIORITY
If DTC “C1A27–97” is displayed with DTC “U1000–01”, “U0415–82” or “U0121–83”, first diagnose the DTC “U1000–01”, “U0415–82” or “U0121–83”.
Is applicable DTC detected?
YES>>Perform diagnosis of applicable.
U1000–01: Refer to DTC Description
.U0415–82: Refer to DTC Description
.U0121–83: Refer to DTC Description
GO TO 2.
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
Start the engine.
Wait for approximately 1 minute after turning the MAIN switch of ICC system ON.
Perform “All DTC Reading”.
Check if the “C1A27–97” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is “C1A27–97” detected as the current malfunction?
YES>>Refer to DTC Description.
NO>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>Confirmation after repair: Inspection End
CHECK DTC PRIORITY
If DTC “C1A27–97” is displayed with DTC “U1000–01”, “U0415–82” or “U0121–83”, first diagnose the DTC “U1000–01”, “U0415–82” or “U0121–83”.
Is applicable DTC detected?
YES>>Perform diagnosis of applicable.
U1000–01: Refer to DTC Description
.U0415–82: Refer to DTC Description
.U0121–83: Refer to DTC Description
GO TO 2.
CHECK POWER SUPPLY CIRCUIT OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Check power supply circuit of ABS actuator and electric unit (control unit). Refer to Diagnosis Procedure.
Is the inspection result normal?
YES>>Perform self-diagnosis of ABS actuator and electric unit (control unit). Refer to DTC Index.
NO>>Repair the harnesses or connectors.
C1a24-97 Np Range
C1a34-64 Command Error