CRUISE CONTROL: FRONT CAMERA SYSTEM: C1AAE00; Front Recognition Camera Heater Malfunction; 2019 - 2021 MY RAV4 RAV4 HV [11/2018

Last Modified: 05-08-2025	6.11:8.1.0	Doc ID: RM100000001FNL7
Model Year Start: 2019	Model: RAV4	Prod Date Range: [11/2018 - 12/2021]
Title: CRUISE CONTROL: FRONT CAMERA SYSTEM: C1AAE00; Front Recognition Camera Heater Malfunction; 2019 - 2021 MY RAV4 RAV4 HV [11/2018 - 12/2021]

DTC

C1AAE00

Front Recognition Camera Heater Malfunction

DESCRIPTION

The forward recognition camera controls the current to the forward recognition hood with heater sub-assembly.

C1AAE00 is stored when the forward recognition camera detects a forward recognition hood with heater sub-assembly operation circuit malfunction.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1AAE00	Front Recognition Camera Heater Malfunction	When 10 seconds elapse after turning the ignition switch to ON, the forward recognition camera determines that one of the following conditions is met Short to +B in the hot wire circuit accumulated for 1 second or more Open or short to ground in the hot wire circuit continued for 5 seconds or more	Forward recognition with heater hood sub-assembly Forward recognition camera Harness or connector

DTC detection condition combination table: C1AAE00

		Vehicle Condition
		Pattern 1	Pattern 2	Pattern 3
Detection condition	10 seconds elapse after turning the ignition switch to ON	○	○	○
Malfunction status	Short to +B in hot wire circuit	○	-	-
	Open circuit in hot wire circuit	-	○	-
	Short to GND in hot wire circuit	-	-	○
Malfunction duration		1 second or more continuously	5 seconds or more continuously	5 seconds or more continuously
Number of trips		1 trip	1 trip	1 trip

HINT:

The DTC is output when a combination of any of the above conditions are met.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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 it will not match the information from the vehicle and a DTC may be stored.
If the forward recognition camera has been replaced with a new one, be sure to perform forward recognition camera adjustment.
HINT:

Forward recognition camera adjustment can be performed by using either "One Time Recognition" or "Sequential Recognition".

One Time Recognition:

Click here

Sequential Recognition:

Click here

PROCEDURE

1.	CHECK FOR DTC

(a) Clear the DTCs.

Click here

Chassis > Front Recognition Camera > Clear DTCs

(b) Make sure that the DTC detection conditions are met.

HINT:

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

Click here

Chassis > Front Recognition Camera > Trouble Codes

OK:

DTC C1AAE00 is not output.

USE SIMULATION METHOD TO CHECK

2.	CHECK FORWARD RECOGNITION WITH HEATER HOOD SUB-ASSEMBLY

(a) Turn the ignition switch off.

*a	Component without harness connected (Forward Recognition with Heater Hood Sub-assembly)

(b) Disconnect the P17 forward recognition with heater hood sub-assembly connector.

Standard Resistance:

Tester Connection	Switch Condition	Specified Condition
1 (IG1) - 2 (HTR)	Ignition switch off	28.5 to 31.5 Ω

REPLACE FORWARD RECOGNITION WITH HEATER HOOD SUB-ASSEMBLY

3.	CHECK HARNESS AND CONNECTOR (FORWARD RECOGNITION WITH HEATER HOOD SUB-ASSEMBLY - BATTERY)

(a) Disconnect the forward recognition with heater hood sub-assembly connector.

*a	Front view of wire harness connector (to Forward Recognition with Heater Hood Sub-assembly)

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
P17-1 (IG1) - Body ground	Ignition switch ON	8 to 16 V
P17-1 (IG1) - Body ground	Ignition switch off	Below 1.5 V

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.	CHECK HARNESS AND CONNECTOR (FORWARD RECOGNITION WITH HEATER HOOD SUB-ASSEMBLY - FORWARD RECOGNITION CAMERA)

(a) Disconnect the P17 forward recognition with heater hood sub-assembly connector.

(b) Disconnect the P8 forward recognition camera connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
P17-2 (HTR) - P8-1 (HTR)	Always	Below 1 Ω
P17-2 (HTR) or P8-1 (HTR) - Body ground	Always	10 kΩ or higher

(d) Reconnect the P8 forward recognition camera connector.

(e) Reconnect the P17 forward recognition with heater hood sub-assembly connector.

REPLACE FORWARD RECOGNITION CAMERA

REPAIR OR REPLACE HARNESS OR CONNECTOR