DTC C1AA0: Front Camera Module Circuit [06/2017 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Chassis / PCS/LDA/RSA/LVN / Trouble Codes.
5. Check for DTCs (Refer to DTC CHECK / CLEAR [11/2015 - ] ).
   RESULT:
   
   

   Result	Proceed to
   DTC C1AA0 is not output	A
   DTC C1AA0 is output	B

Result: 

A 

USE SIMULATION METHOD TO CHECK 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2015 - ] )

Result: 

B 

See step  2

1. Remove the GAUGE fuse.
2. Remove the TSSC HTR relay.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection		Condition	Specified Condition
   GAUGE fuse holder terminal 2 - TSSC HTR relay holder terminal 1	Positive (+) tester probe → GAUGE fuse holder terminal 2 Negative (-) tester probe → TSSC HTR relay holder terminal 1	Always	Below 1 Ω
   	Negative (-) tester probe → GAUGE fuse holder terminal 2 Positive (+) tester probe → TSSC HTR relay holder terminal 1	Always	10 kΩ or higher

4. w/o Sliding Roof:
   1. Disconnect the Q7 pre-collision city sensor connector.
   2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection		Condition	Specified Condition
      Q7-8 (BUZ) - TSSC HTR relay holder terminal 1	Positive (+) tester probe → Q7-8 (BUZ) Negative (-) tester probe → TSSC HTR relay holder terminal 1	Always	Below 1 Ω
      	Negative (-) tester probe → Q7-8 (BUZ) Positive (+) tester probe → TSSC HTR relay holder terminal 1	Always	10 kΩ or higher

   3. Connect the Q7 pre-collision city sensor connector.
5. w/ Sliding Roof:
   1. Disconnect the Q8 pre-collision city sensor connector.
   2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection		Condition	Specified Condition
      Q8-8 (BUZ) - TSSC HTR relay holder terminal 1	Positive (+) tester probe → Q8-8 (BUZ) Negative (-) tester probe → TSSC HTR relay holder terminal 1	Always	Below 1 Ω
      	Negative (-) tester probe → Q8-8 (BUZ) Positive (+) tester probe → TSSC HTR relay holder terminal 1	Always	10 kΩ or higher

   3. Connect the Q8 pre-collision city sensor connector.
6. Install the TSSC HTR relay.
7. Install the GAUGE fuse.

Result: 

OK 

See step  4

Result: 

NG 

See step  3

1. Repair or replace the harness or connector.

NEXT 

See step  4

1. Replace the pre-collision city sensor.

   Refer to REMOVAL [11/2015 - ]

2. Perform Pre-collision City Sensor Optical Axis Learning.

   Refer to ADJUSTMENT [11/2015 - ]

NEXT 

END