Lexus NX: Stop Switch Circuit Malfunction (C164E)
DESCRIPTION
When a stop light switch assembly circuit malfunction signal sent from the electronically controlled brake system is detected by the clearance warning ECU assembly, DTC C164E is stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C164E | Stop Switch Circuit Malfunction | Stop light switch assembly circuit open | Electronically controlled brake system |
CAUTION / NOTICE / HINT
NOTICE:
-
After the power switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
Click here
.gif)
-
When disconnecting and reconnecting the auxiliary battery
Click here
HINT:
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
Click here
-
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 FOR DTC |
(a) Using the Techstream, check for DTCs according to the prompts on the screen.
Click here
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.
Click here
(c) Recheck for DTCs.
Click here
HINT:
- DTC C164E is stored when a malfunction signal sent from the electronically controlled brake system is detected.
- If the malfunctioning part has been repaired or replaced before rechecking for DTCs, DTC C164E will not be output again.
-
If DTC C164E is output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even though the DTC was not output when rechecking for DTCs.
Click here
| Result | Proceed to |
|---|---|
| DTC C164E is output | A |
| DTC C164E is not output | B |
| A | .gif) | GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM |
| B | | USE SIMULATION METHOD TO CHECK |
READ NEXT:
Brake Hydraulic Pressure Malfunction (C164F)
DESCRIPTION When a malfunction signal sent from the brake booster with master cylinder assembly (skid control ECU) via CAN communication is detected by the clearance warning ECU assembly, DTC C164F is
Outside Air Temperature Sensor (C1652)
DESCRIPTION When a malfunction signal sent from the air conditioning system via CAN communication is detected by the clearance warning ECU assembly, DTC C1652 is stored. DTC No. Detection Item
Vehicle Information Unmatched (C168D)
DESCRIPTION If the vehicle information stored in the main body ECU (multiplex network body ECU) which is sent via CAN communication during the clearance warning ECU assembly self-diagnosis does not ma
SEE MORE:
Back-up Power Source Circuit
DESCRIPTION The back-up power source circuit for the air conditioning amplifier assembly is shown below. Power is supplied even when the power switch is off. The power is used for diagnostic trouble code memory, etc. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits rela
Parts Location
PARTS LOCATION ILLUSTRATION *1 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY - AM2 FUSE - STRG LOCK FUSE *2 NO. 2 ENGINE ROOM RELAY BLOCK AND NO. 2 JUNCTION BLOCK ASSEMBLY - IMMOBI FUSE ILLUSTRATION *1 POWER SWITCH *2 CERTIFICATION ECU (SMART KEY ECU ASSEMBLY
