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FORWARD RECOGNITION CAMERA SYSTEM, Diagnostic DTC:C1AAE

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DTC Code DTC Name
C1AAE Heater Circuit
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DESCRIPTION

The forward recognition camera turns the pre-crash safety city heater (forward recognition hood) on or off.

C1AAE is stored when the forward recognition camera detects a malfunction in the camera heater circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AAE Heater Circuit Malfunction is in pre-crash safety city heater (forward recognition hood) circuit.

  • Pre-crash safety city heater (forward recognition hood)

  • Forward recognition camera

  • Harness or connector
Table 1. *a from IG Circuit *b IG1 NO. 5 *c Pre-crash Safety City Heater (Forward Recognition Hood) *d Forward Recognition Camera
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

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

  • When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.

  • If the forward recognition camera has been replaced with a new one, be sure to perform Forward Recognition Camera Axis Adjustment.

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PROCEDURE


  1. Click here

    CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM)


    1. Clear the DTCs.

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      1. Chassis > Front Recognition Camera > Clear DTCs


    2. Make sure that the DTC detection conditions are met.

      Tip:

      If the conditions are not met, the system cannot detect the malfunction.

    3. Check for DTCs.

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      1. Chassis > Front Recognition Camera > Trouble Codes


      Result
      Result Proceed to
      DTC C1AAE is not output A
      DTC C1AAE is output B

  2. Click here

    CHECK PRE-CRASH SAFETY CITY HEATER (FORWARD RECOGNITION HOOD)


    1. B0026O9C02
      *a

      Component without harness connected

      (Pre-crash Safety City Heater (Forward Recognition Hood))

      Disconnect the Q5 pre-crash safety city heater (forward recognition hood) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q5-1 (IG1) - Q5-2 (HTR) Ignition switch off 38 to 42 Ω

    3. Connect the Q5 pre-crash safety city heater (forward recognition hood) connector.

      Result
      Proceed to
      OK
      NG

  3. Click here

    CHECK HARNESS AND CONNECTOR (PRE-CRASH SAFETY CITY HEATER (FORWARD RECOGNITION HOOD) POWER SOURCE VOLTAGE)


    1. B00256PC05
      *a

      Front view of wire harness connector

      (to Pre-crash Safety City Heater (Forward Recognition Hood))

      Disconnect the Q5 pre-crash safety city heater (forward recognition hood) connector.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      Q5-1(IG1) - Body ground Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V

    3. Connect the Q5 pre-crash safety city heater (forward recognition hood) connector.

      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR (PRE-CRASH SAFETY CITY HEATER (FORWARD RECOGNITION HOOD) - BATTERY)

  4. Click here

    CHECK HARNESS AND CONNECTOR (PRE-CRASH SAFETY CITY HEATER (FORWARD RECOGNITION HOOD) - FORWARD RECOGNITION CAMERA)


    1. Disconnect the Q5 pre-crash safety city heater (forward recognition hood) connector.

    2. Disconnect the Q4 forward recognition camera connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q5-2 (HTR) - Q4-1 (HTR) Always Below 1 Ω
      Q5-2 (HTR) or Q4-1 (HTR) - Body ground Always 10 kΩ or higher

    4. Connect the Q5 pre-crash safety city heater (forward recognition hood) connector.

    5. Connect the Q4 forward recognition camera connector.

      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR (PRE-CRASH SAFETY CITY HEATER (FORWARD RECOGNITION HOOD) - FORWARD RECOGNITION CAMERA)

  5. Click here

    CHECK HARNESS AND CONNECTOR (FORWARD RECOGNITION CAMERA - BODY GROUND)


    1. Disconnect the Q4 forward recognition camera connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q4-10 (GND) - Body ground Always Below 1 Ω

    3. Connect the Q4 forward recognition camera connector

      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE FORWARD RECOGNITION CAMERAClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR (FORWARD RECOGNITION CAMERA - BODY GROUND)