PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:C1AA0

DTC Code DTC Name
C1AA0 Front Camera Module Circuit

DESCRIPTION

DTC C1AA0 is stored when the pre-crash safety city sensor detects an internal circuit malfunction.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AA0 Front Camera Module Circuit When the power switch is on (IG) and the pre-crash safety system is enabled, the pre-crash safety city sensor detects an internal circuit malfunction for 5 seconds or more.

  • Pre-crash safety city sensor

  • Harness or connector (w/ Pre-crash Safety City Heater)

WIRING DIAGRAM

A00322CE03

CAUTION / NOTICE / HINT

Note


  • w/ Pre-crash Safety City Heater:

    Inspect the fuses for circuits related to this system before performing the following procedure.

  • When replacing the pre-crash safety city sensor, replace it with a new one and be sure to perform initialization. If a pre-crash safety city sensor which was installed to another vehicle is used, the information stored in the pre-crash safety city sensor will not match the information from the vehicle and, as a result, a DTC may be stored.

  • If the pre-crash safety city sensor has been replaced, or the windshield glass has been replaced or removed/installed, be sure to perform Recognition Camera/Target Position Memory and Recognition Camera Axis Adjust.

    Click here

PROCEDURE


  1. CHECK FOR DTCS


    1. Check if the stored DTCs are current DTCs.

    2. Check for DTCs.

      Click here


      Chassis > PCS/LDA/RSA/LVN > Trouble Codes
      Result
      Result Proceed to
      DTC C1AA0 is not output A
      DTC C1AA0 is output (w/ Pre-crash Safety City Heater) B
      DTC C1AA0 is output (w/o Pre-crash Safety City Heater) C

    A

    USE SIMULATION METHOD TO CHECK Click here

    C

    GO TO STEP 3 Click here

    B

  2. CHECK HARNESS AND CONNECTOR (TSS C HTR RELAY COIL CIRCUIT)


    1. Remove the ECU-IG NO. 3 fuse from the instrument panel junction block assembly.

    2. Remove the TSS C HTR relay.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      ECU-IG NO. 3 fuse holder terminal 2 - TSS C HTR relay holder terminal 2

      • Positive (+) tester probe → ECU-IG NO. 3 fuse holder terminal 2

      • Negative (-) tester probe → TSS C HTR relay holder terminal 2

      		 Always Below 1 Ω

      • Negative (-) tester probe → ECU-IG NO. 3 fuse holder terminal 2

      • Positive (+) tester probe → TSS C HTR relay holder terminal 2

      		 Always 10 kΩ or higher

    4. Disconnect the O9 pre-crash safety city sensor connector.

    5. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      O9-8 (BUZ) - TSS C HTR relay holder terminal 2

      • Positive (+) tester probe → O9-8 (BUZ)

      • Negative (-) tester probe → TSS C HTR relay holder terminal 2

      		 Always Below 1 Ω

      • Negative (-) tester probe → O9-8 (BUZ)

      • Positive (+) tester probe → TSS C HTR relay holder terminal 2

      		 Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (TSS C HTR RELAY COIL CIRCUIT) Click here

    OK

  3. REPLACE PRE-CRASH SAFETY CITY SENSOR


    1. Replace the pre-crash safety city sensor.

      Click here

    2. Perform the "Recognition Camera/Target Position Memory" and "Recognition Camera Axis Adjust" of pre-crash safety city sensor.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    END

  4. REPAIR OR REPLACE HARNESS OR CONNECTOR (TSS C HTR RELAY COIL CIRCUIT)


    1. Repair or replace the harness or connector.

      Result
      Proceed to
      NEXT

    NEXT

  5. REPLACE PRE-CRASH SAFETY CITY SENSOR


    1. Replace the pre-crash safety city sensor.

      Click here

    2. Perform the "Recognition Camera/Target Position Memory" and "Recognition Camera Axis Adjust" of pre-crash safety city sensor.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    END