Lexus ES: ENG / EHV Device (C1A40)
DESCRIPTION
When a SFI system malfunction signal sent by the hybrid vehicle control ECU is detected by the clearance warning ECU assembly, DTC C1A40 is stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1A40 | ENG / EHV Device | When the power switch on (IG), a SFI system malfunction signal is detected for 1 second or more. |
|
CAUTION / NOTICE / HINT
NOTICE:
-
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
Click here
.gif)
-
After replacing an ultrasonic sensor or the clearance warning ECU assembly, perform the necessary procedures (adjustment, calibration, initialization or registration).
Click here
PROCEDURE
| 1. | CHECK DTC OUTPUT |
(a) Using the Techstream, check for DTCs according to the prompts on the screen.
HINT:
After turning the power switch from off to on (IG), wait 4 seconds or more before checking for DTCs.
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes(b) Clear the DTCs according to the screen on the Techstream.
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs(c) Recheck for DTCs.
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble CodesHINT:
- DTC C1A40 is stored when a malfunction signal sent from the EFI system is detected.
- If the malfunctioning part has been repaired or replaced before rechecking for DTCs, DTC C1A40 will not be output again.
-
If DTC C1A40 is output frequently, duplicate the conditions that cause the problem symptoms and perform troubleshooting again, even though the DTC was not output when rechecking for DTCs.
Click here
| Result | Proceed to |
|---|---|
| DTC C1A40 is output | A |
| DTC C1A40 is not output | B |
| A | .gif) | GO TO HYBRID CONTROL SYSTEM |
| B | | USE SIMULATION METHOD TO CHECK |
READ NEXT:
ENG / EHV Device (C1A40)
DESCRIPTION When a SFI system malfunction signal sent by the hybrid vehicle control ECU is detected by the clearance warning ECU assembly, DTC C1A40 is stored. DTC No. Detection Item DTC Detect
Brake System (C1A50)
DESCRIPTION When an electronically controlled brake system malfunction signal sent from the skid control ECU is detected by the clearance warning ECU assembly, DTC C1A50 is stored. DTC No. Detect
Steering Angle Midpoint Initial Setting Incomplete (C1AEA)
DESCRIPTION When the clearance warning ECU assembly detects that the steering angle neutral point memorization is incomplete during self diagnosis, C1AEA is stored. DTC No. Detection Item DTC D
SEE MORE:
Inspection
INSPECTION PROCEDURE 1. INSPECT FUEL LID OPENER SWITCH (TRUNK AND FUEL SWITCH ASSEMBLY) (a) Check the switch. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition 2 (B) - 3 (L) Pressed (On) Be
Cursor or Map Rotates when Vehicle Stopped
PROCEDURE 1. CHECK CONDITION (a) Check with the customer if the vehicle has been turned by a turntable. OK: Vehicle has not been turned by a turntable. HINT: If the vehicle is turned on a turntable with the power switch on (IG), the system may store the angular velocity. As a result, th
