BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): C1352-C1359; Increasing Pressure Solenoid (FR); 2019 - 2022 MY Avalon HV [04/2018

Last Modified: 08-21-2023	6.11:8.1.0	Doc ID: RM100000001ANKN
Model Year Start: 2019	Model: Avalon HV	Prod Date Range: [04/2018 - ]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): C1352-C1359; Increasing Pressure Solenoid (FR); 2019 - 2022 MY Avalon HV [04/2018 - ]

DTC

C1352

Increasing Pressure Solenoid (FR)

DTC

C1353

Increasing Pressure Solenoid (FL)

DTC

C1354

Increasing Pressure Solenoid (RR)

DTC

C1355

Increasing Pressure Solenoid (RL)

DTC

C1356

Decreasing Pressure Solenoid (FR)

DTC

C1357

Decreasing Pressure Solenoid (FL)

DTC

C1358

Decreasing Pressure Solenoid (RR)

DTC

C1359

Decreasing Pressure Solenoid (RL)

DESCRIPTION

Each solenoid adjusts the pressure which affects each wheel cylinder according to signals from the skid control ECU (brake booster with master cylinder assembly) and controls the vehicle.

DTC No.	Detection Item	INF Code	DTC Detection Condition	Trouble Area	MIL	Note
C1352	Increasing Pressure Solenoid (FR)	11 1100 1101 1102 1103 1170	INF Code: 11 A malfunction in the solenoid current monitoring circuit is detected for 0.05 seconds or more. INF Code: 1100 An open is detected in the solenoid for 0.05 seconds or more. INF Code: 1101 Overcurrent is detected in the solenoid for 0.05 seconds or more. INF Code: 1102 Current leakage is detected in the solenoid for 0.05 seconds or more. INF Code: 1103 A solenoid drive circuit malfunction (flyback diode malfunction) is detected for 0.05 seconds or more. INF Code: 1170 The ECU solenoid output differs from the drain monitoring output (drain monitoring is on when the ECU solenoid is not operating) for 0.05 seconds or more.	Wire harness or connector Brake actuator assembly Skid control ECU (brake booster with master cylinder assembly)	Comes on	INF Code 11: SAE Code C12BC (Case 2) INF Code 1100: SAE Code C12BD INF Code 1101: SAE Code C12BE (Case 1) INF Code 1102: SAE Code C12BE (Case 2) INF Code 1103: SAE Code C12BC (Case 1) INF Code 1170: SAE Code C12BE (Case 3) Electronically controlled brake system DTC
C1353	Increasing Pressure Solenoid (FL)	13 1106 1107 1108 1109 1172	INF Code: 13 A malfunction in the solenoid current monitoring circuit is detected for 0.05 seconds or more. INF Code: 1106 An open is detected in the solenoid for 0.05 seconds or more. INF Code: 1107 Overcurrent is detected in the solenoid for 0.05 seconds or more. INF Code: 1108 Current leakage is detected in the solenoid for 0.05 seconds or more. INF Code: 1109 A solenoid drive circuit malfunction (flyback diode malfunction) is detected for 0.05 seconds or more. INF Code: 1172 The ECU solenoid output differs from the drain monitoring output (drain monitoring is on when the ECU solenoid is not operating) for 0.05 seconds or more.	Wire harness or connector Brake actuator assembly Skid control ECU (brake booster with master cylinder assembly)	Comes on	INF Code 13: SAE Code C12A6 (Case 2) INF Code 1106: SAE Code C12A7 INF Code 1107: SAE Code C12A8 (Case 1) INF Code 1108: SAE Code C12A8 (Case 2) INF Code 1109: SAE Code C12A6 (Case 1) INF Code 1172: SAE Code C12A8 (Case 3) Electronically controlled brake system DTC
C1354	Increasing Pressure Solenoid (RR)	15 1112 1113 1114 1115 1174	INF Code: 15 A malfunction in the solenoid current monitoring circuit is detected for 0.05 seconds or more. INF Code: 1112 An open is detected in the solenoid for 0.05 seconds or more. INF Code: 1113 Overcurrent is detected in the solenoid for 0.05 seconds or more. INF Code: 1114 Current leakage is detected in the solenoid for 0.05 seconds or more. INF Code: 1115 A solenoid drive circuit malfunction (flyback diode malfunction) is detected for 0.05 seconds or more. INF Code: 1174 The ECU solenoid output differs from the drain monitoring output (drain monitoring is on when the ECU solenoid is not operating) for 0.05 seconds or more.	Wire harness or connector Brake actuator assembly Skid control ECU (brake booster with master cylinder assembly)	Comes on	INF Code 15: SAE Code C12E8 (Case 2) INF Code 1112: SAE Code C12E9 INF Code 1113: SAE Code C12EA (Case 1) INF Code 1114: SAE Code C12EA (Case 2) INF Code 1115: SAE Code C12E8 (Case 1) INF Code 1174: SAE Code C12EA (Case 3) Electronically controlled brake system DTC
C1355	Increasing Pressure Solenoid (RL)	17 1118 1119 1120 1121 1176	INF Code: 17 A malfunction in the solenoid current monitoring circuit is detected for 0.05 seconds or more. INF Code: 1118 An open is detected in the solenoid for 0.05 seconds or more. INF Code: 1119 Overcurrent is detected in the solenoid for 0.05 seconds or more. INF Code: 1120 Current leakage is detected in the solenoid for 0.05 seconds or more. INF Code: 1121 A solenoid drive circuit malfunction (flyback diode malfunction) is detected for 0.05 seconds or more. INF Code: 1176 The ECU solenoid output differs from the drain monitoring output (drain monitoring is on when the ECU solenoid is not operating) for 0.05 seconds or more.	Wire harness or connector Brake actuator assembly Skid control ECU (brake booster with master cylinder assembly)	Comes on	INF Code 17: SAE Code C12D2 (Case 2) INF Code 1118: SAE Code C12D3 INF Code 1119: SAE Code C12D4 (Case 1) INF Code 1120: SAE Code C12D4 (Case 2) INF Code 1121: SAE Code C12D2 (Case 1) INF Code 1176: SAE Code C12D4 (Case 3) Electronically controlled brake system DTC
C1356	Decreasing Pressure Solenoid (FR)	12 1104 1105 1171	INF Code: 12 An open is detected in the solenoid for 0.05 seconds or more. INF Code: 1104 Overcurrent is detected in the solenoid for 0.05 seconds or more. INF Code: 1105 Current leakage is detected in the solenoid for 0.05 seconds or more. INF Code: 1171 The ECU solenoid output differs from the drain monitoring output (drain monitoring is on when the ECU solenoid is not operating) for 0.05 seconds or more.	Wire harness or connector Brake actuator assembly Skid control ECU (brake booster with master cylinder assembly)	Comes on	INF Code 12: SAE Code C12C8 INF Code 1104: SAE Code C12C9 (Case 1) INF Code 1105: SAE Code C12C9 (Case 2) INF Code 1171: SAE Code C12C9 (Case 3) Electronically controlled brake system DTC
C1357	Decreasing Pressure Solenoid (FL)	14 1110 1111 1173	INF Code: 14 An open is detected in the solenoid for 0.05 seconds or more. INF Code: 1110 Overcurrent is detected in the solenoid for 0.05 seconds or more. INF Code: 1111 Current leakage is detected in the solenoid for 0.05 seconds or more. INF Code: 1173 The ECU solenoid output differs from the drain monitoring output (drain monitoring is on when the ECU solenoid is not operating) for 0.05 seconds or more.	Wire harness or connector Brake actuator assembly Skid control ECU (brake booster with master cylinder assembly)	Comes on	INF Code 14: SAE Code C12B2 INF Code 1110: SAE Code C12B3 (Case 1) INF Code 1111: SAE Code C12B3 (Case 2) INF Code 1173: SAE Code C12B3 (Case 3) Electronically controlled brake system DTC
C1358	Decreasing Pressure Solenoid (RR)	16 1116 1117 1175	INF Code: 16 An open is detected in the solenoid for 0.05 seconds or more. INF Code: 1116 Overcurrent is detected in the solenoid for 0.05 seconds or more. INF Code: 1117 Current leakage is detected in the solenoid for 0.05 seconds or more. INF Code: 1175 The ECU solenoid output differs from the drain monitoring output (drain monitoring is on when the ECU solenoid is not operating) for 0.05 seconds or more.	Wire harness or connector Brake actuator assembly Skid control ECU (brake booster with master cylinder assembly)	Comes on	INF Code 16: SAE Code C12F4 INF Code 1116: SAE Code C12F5 (Case 1) INF Code 1117: SAE Code C12F5 (Case 2) INF Code 1175: SAE Code C12F5 (Case 3) Electronically controlled brake system DTC
C1359	Decreasing Pressure Solenoid (RL)	18 1122 1123 1177	INF Code: 18 An open is detected in the solenoid for 0.05 seconds or more. INF Code: 1122 Overcurrent is detected in the solenoid for 0.05 seconds or more. INF Code: 1123 Current leakage is detected in the solenoid for 0.05 seconds or more. INF Code: 1177 The ECU solenoid output differs from the drain monitoring output (drain monitoring is on when the ECU solenoid is not operating) for 0.05 seconds or more.	Wire harness or connector Brake actuator assembly Skid control ECU (brake booster with master cylinder assembly)	Comes on	INF Code 18: SAE Code C12DE INF Code 1122: SAE Code C12DF (Case 1) INF Code 1123: SAE Code C12DF (Case 2) INF Code 1177: SAE Code C12DF (Case 3) Electronically controlled brake system DTC

MONITOR DESCRIPTION

The skid control ECU (brake booster with master cylinder assembly) monitors the drive voltage and current of the ABS holding solenoid and ABS reduction solenoid. Based on the monitored information, if any of the following abnormal conditions are detected, the MIL is illuminated and a DTC is stored.

A flyback circuit malfunction is detected.
A malfunction of the current monitor is detected.
An open circuit in the holding valve is detected.
When the monitored current value increases to a value that is not possible when normal.
A current leakage is detected.
Output malfunction is detected when there is a solenoid off command.
An open circuit in the decrease pressure valve is detected.

MONITOR STRATEGY

Related DTCs	C12A6 (Case 1): ABS holding solenoid range/performance C12A6 (Case 2): ABS holding solenoid range/performance C12A7: ABS holding solenoid circuit low C12A8 (Case 1): ABS holding solenoid circuit high C12A8 (Case 2): ABS holding solenoid circuit high C12A8 (Case 3): ABS holding solenoid circuit high C12B2: ABS reduction solenoid circuit low C12B3 (Case 1): ABS reduction solenoid circuit high C12B3 (Case 2): ABS reduction solenoid circuit high C12B3 (Case 3): ABS reduction solenoid circuit high C12BC (Case 1): ABS holding solenoid range/performance C12BC (Case 2): ABS holding solenoid range/performance C12BD: ABS holding solenoid circuit low C12BE (Case 1): ABS holding solenoid circuit high C12BE (Case 2): ABS holding solenoid circuit high C12BE (Case 3): ABS holding solenoid circuit high C12C8: ABS reduction solenoid circuit low C12C9 (Case 1): ABS reduction solenoid circuit high C12C9 (Case 2): ABS reduction solenoid circuit high C12C9 (Case 3): ABS reduction solenoid circuit high C12D2 (Case 1): ABS holding solenoid range/performance C12D2 (Case 2): ABS holding solenoid range/performance C12D3: ABS holding solenoid circuit low C12D4 (Case 1): ABS holding solenoid circuit high C12D4 (Case 2): ABS holding solenoid circuit high C12D4 (Case 3): ABS holding solenoid circuit high C12DE: ABS reduction solenoid circuit low C12DF (Case 1): ABS reduction solenoid circuit high C12DF (Case 2): ABS reduction solenoid circuit high C12DF (Case 3): ABS reduction solenoid circuit high C12E8 (Case 1): ABS holding solenoid range/performance C12E8 (Case 2): ABS holding solenoid range/performance C12E9: ABS holding solenoid circuit low C12EA (Case 1): ABS holding solenoid circuit high C12EA (Case 2): ABS holding solenoid circuit high C12EA (Case 3): ABS holding solenoid circuit high C12F4: ABS reduction solenoid circuit low C12F5 (Case 1): ABS reduction solenoid circuit high C12F5 (Case 2): ABS reduction solenoid circuit high C12F5 (Case 3): ABS reduction solenoid circuit high
Required Sensors/Components(Main)	Skid control ECU (brake booster with master cylinder assembly) Brake actuator assembly
Required Sensors/Components(Related)	Skid control ECU (brake booster with master cylinder assembly) Brake actuator assembly
Frequency of Operation	Continuous
Duration	54 times: C12B2, C12C8, C12DE and C12F4 0.054 seconds: C12A6 (Case 1 and 2), C12A7, C12A8 (Case 1, 2 and 3), C12B3 (Case 1, 2 and 3), C12BC (Case 1 and 2), C12BD, C12BE (Case 1, 2 and 3), C12C9 (Case 1, 2 and 3), C12D2 (Case 1 and 2), C12D3, C12D4 (Case 1, 2 and 3), C12DF (Case 1, 2 and 3), C12E8 (Case 1 and 2), C12E9, C12EA (Case 1, 2 and 3) and C12F5 (Case 1, 2 and 3)
MIL Operation	Immediately
Sequence of Operation	None

TYPICAL ENABLING CONDITIONS

All

Monitor runs whenever the following DTCs are not stored

None

C12A6, C12BC, C12D2 and C12E8 (Case 1 and 2)

Serial communication with low side IC

Valid

C12A7, C12BD, C12D3 and C12E9

All of the following conditions are met	-
Power supply for ABS solenoid	Higher than 9.13 V
Serial communication with low side IC	Valid
Output duty cycle	Higher than 40%
ABS holding solenoid current monitor	Normal
ABS solenoid power supply relay	On

C12A8, C12B3, C12BE, C12C9, C12D4, C12DF, C12EA and C12F5 (Case 1)

Both of the following conditions are met	-
Serial communication with low side IC	Valid
Current monitor power supply	Higher than 1.2 V, and less than 1.38 V

C12A8, C12BE, C12D4 and C12EA (Case 2)

All of the following conditions are met	-
Serial communication with low side IC	Valid
ABS solenoid power supply relay	On
Output duty cycle	0%

C12A8, C12BE, C12D4 and C12EA (Case 3)

All of the following conditions are met	-
Serial communication with low side IC	Valid
Power supply for ABS solenoid	Higher than 9.13 V
Output duty cycle	0%
ABS solenoid power supply relay	On

C12B2, C12C8, C12DE and C12F4

All of the following conditions are met	-
ABS solenoid power supply relay	On
Serial communication with low side IC	Valid
Command to reduction solenoid on/off	On
ABS reduction solenoid current	Less than 4.4 A

C12B3, C12C9, C12DF and C12F5 (Case 2)

All of the following conditions are met	-
Serial communication with low side IC	Valid
ABS solenoid power supply relay	On
Command to reduction solenoid on/off	Off

C12B3, C12C9, C12DF and C12F5 (Case 3)

All of the following conditions are met	-
Serial communication with low side IC	Valid
Power supply for ABS solenoid	Higher than 9.13 V
Command to reduction solenoid on/off	Off
ABS solenoid power supply relay	On

TYPICAL MALFUNCTION THRESHOLDS

C12A6, C12BC, C12D2 and C12E8 (Case 1)

ABS holding solenoid voltage

Higher than 35 V

C12A6, C12BC, C12D2 and C12E8 (Case 2)

One of the following conditions is met	A, B or C
A. Both of the following conditions are met	-
ABS holding solenoid current monitor value	Less than 46
ABS holding solenoid current	Less than 3.5 A
B. Current monitor power supply	Higher than 1.38 V, or less than 1.2 V
C. AC/DC converter built into CPU standard voltage	Less than 4.4 V

C12A7, C12BD, C12D3 and C12E9

ABS holding solenoid current

Less than 0.2 A

C12A8, C12BE, C12D4 and C12EA (Case 1)

ABS holding solenoid current

Higher than 3.5 A

C12A8, C12BE, C12D4 and C12EA (Case 2)

ABS holding solenoid voltage

Less than 11.25 V

C12A8, C12BE, C12D4 and C12EA (Case 3)

ABS holding solenoid voltage

Less than 4.128 V

C12B2, C12C8, C12DE and C12F4

Either of the following conditions is met	-
ABS reduction solenoid voltage	Higher than 4.2 V
ABS reduction solenoid current	Less than 0.02 A

C12B3, C12C9, C12DF and C12F5 (Case 1)

ABS reduction solenoid current

Higher than 4.4 A

C12B3, C12C9, C12DF and C12F5 (Case 2)

ABS reduction solenoid voltage

Less than 11.25 V

C12B3, C12C9, C12DF and C12F5 (Case 3)

ABS reduction solenoid voltage

Less than 4.128 V

COMPONENT OPERATING RANGE

C12A6, C12BC, C12D2 and C12E8 (Case 1)

All of the following conditions are met	-
ABS solenoid power supply relay	On
Serial communication with low side IC	Valid
Output duty cycle	Higher than 0%
Low side IC malfunction	Not detected
ABS holding solenoid voltage	Less than 35 V

C12A6, C12BC, C12D2 and C12E8 (Case 2)

All of the following conditions are met	-
ABS solenoid power supply relay	On
Serial communication with low side IC	Valid
ABS holding solenoid current monitor value	46 or more
Current monitor power supply	1.38 V or less, and 1.2 V or more
AC/DC converter built into CPU standard voltage	Higher than 4.4 V

C12A7, C12BD, C12D3 and C12E9

All of the following conditions are met	-
ABS solenoid power supply relay	On
Serial communication with low side IC	Valid
Output duty cycle	Higher than 40%
ABS holding solenoid current monitor	Normal
ABS holding solenoid current	0.2 A or more

C12A8, C12BE, C12D4 and C12EA (Case 1)

All of the following conditions are met	-
ABS solenoid power supply relay	On
Serial communication with low side IC	Valid
Output duty cycle	Higher than 0%
Low side IC malfunction	Not detected
ABS holding solenoid current	Less than 3.5 A

C12A8, C12BE, C12D4 and C12EA (Case 2)

All of the following conditions are met	-
Serial communication with low side IC	Valid
ABS solenoid power supply relay	On
Output duty cycle	0%
ABS holding solenoid voltage	Higher than 11.29 V

C12A8, C12BE, C12D4 and C12EA (Case 3)

All of the following conditions are met	-
Serial communication with low side IC	Valid
ABS solenoid power supply relay	On
Output duty cycle	0%
ABS holding solenoid voltage	Higher than 4.2 V

C12B2, C12C8, C12DE and C12F4

All of the following conditions are met	-
ABS solenoid power supply relay	On
Serial communication with low side IC	Valid
Command to reduction solenoid on/off	On
Low side IC malfunction	Not detected
ABS reduction solenoid voltage	Less than 4.128 V
ABS reduction solenoid current	Higher than 0.02 A

C12B3, C12C9, C12DF and C12F5 (Case 1)

All of the following conditions are met	-
ABS solenoid power supply relay	On
Serial communication with low side IC	Valid
Command to reduction solenoid on/off	On
Low side IC malfunction	Not detected
ABS reduction solenoid current	Less than 4.4 A

C12B3, C12C9, C12DF and C12F5 (Case 2)

All of the following conditions are met	-
Serial communication with low side IC	Valid
ABS solenoid power supply relay	On
Command to reduction solenoid on/off	Off
ABS reduction solenoid voltage	Higher than 11.29 V

C12B3, C12C9, C12DF and C12F5 (Case 3)

All of the following conditions are met	-
Serial communication with low side IC	Valid
ABS solenoid power supply relay	On
Command to reduction solenoid on/off	Off
ABS reduction solenoid voltage	Higher than 4.2 V

CONFIRMATION DRIVING PATTERN

Connect the Techstream to the DLC3.
Turn the power switch on (IG).
Turn the Techstream on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the power switch off.
Turn the power switch on (IG).
Turn the Techstream on.
Drive the vehicle at a speed of 20 km/h (12 mph) for 1 minute.
Operate the ABS using a drum tester or equivalent.
Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.
Read the DTCs.
HINT:
- If a DTC is output, the system is malfunctioning.
- If a DTC is not output, perform the following procedure.
If the DTCs are not output, perform a universal trip and check for permanent DTCs.
Click here
HINT:
- If a permanent DTC is output, the system is malfunctioning.
- If no permanent DTCs are output, the system is normal.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

After replacing the skid control ECU (brake booster with master cylinder assembly) or brake actuator assembly, perform linear solenoid valve offset learning, ABS holding solenoid valve learning, yaw rate and acceleration sensor zero point calibration and system information memorization after performing "Reset Memory".

Click here

PROCEDURE

1.	INSPECT BRAKE ACTUATOR ASSEMBLY

(a) Make sure that there is no looseness at the locking part and the connecting part of the connector.

OK:

The connector is securely connected.

Component without harness connected

(Brake Actuator Assembly)

(b) Disconnect the A39 brake actuator assembly connector.

OK:

No deformation or corrosion.

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

HINT:

Check the brake actuator assembly when it is cooled down.

Standard Resistance:

Tester Connection	Condition	Specified Condition
5 (+BS) - 28 (SFRH)	Always	6.4 to 7.0 Ω
5 (+BS) - 31 (SFLH)	Always	6.4 to 7.0 Ω
5 (+BS) - 30 (SRRH)	Always	6.4 to 7.0 Ω
5 (+BS) - 29 (SRLH)	Always	6.4 to 7.0 Ω
5 (+BS) - 18 (SFRR)	Always	5.1 to 5.7 Ω
5 (+BS) - 15 (SFLR)	Always	5.1 to 5.7 Ω
5 (+BS) - 16 (SRRR)	Always	5.1 to 5.7 Ω
5 (+BS) - 17 (SRLR)	Always	5.1 to 5.7 Ω

REPLACE BRAKE ACTUATOR ASSEMBLY

2.	CHECK HARNESS AND CONNECTOR (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY - BRAKE ACTUATOR ASSEMBLY)

(a) Make sure that there is no looseness at the locking part and the connecting part of the connector.

OK:

The connector is securely connected.

(b) Disconnect the A35 skid control ECU (brake booster with master cylinder assembly) connector.

OK:

No deformation or corrosion.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
A35-14 (+BS) - A39-5 (+BS)	Always	Below 1 Ω
A35-14 (+BS) or A39-5 (+BS) - Body ground	Always	10 kΩ or higher
A35-48 (SFRH) - A39-28 (SFRH)	Always	Below 1 Ω
A35-48 (SFRH) or A39-28 (SFRH) - Body ground	Always	10 kΩ or higher
A35-49 (SFLH) - A39-31 (SFLH)	Always	Below 1 Ω
A35-49 (SFLH) or A39-31 (SFLH) - Body ground	Always	10 kΩ or higher
A35-50 (SRRH) - A39-30 (SRRH)	Always	Below 1 Ω
A35-50 (SRRH) or A39-30 (SRRH) - Body ground	Always	10 kΩ or higher
A35-51 (SRLH) - A39-29 (SRLH)	Always	Below 1 Ω
A35-51 (SRLH) or A39-29 (SRLH) - Body ground	Always	10 kΩ or higher
A35-44 (SFRR) - A39-18 (SFRR)	Always	Below 1 Ω
A35-44 (SFRR) or A39-18 (SFRR) - Body ground	Always	10 kΩ or higher
A35-45 (SFLR) - A39-15 (SFLR)	Always	Below 1 Ω
A35-45 (SFLR) or A39-15 (SFLR) - Body ground	Always	10 kΩ or higher
A35-46 (SRRR) - A39-16 (SRRR)	Always	Below 1 Ω
A35-46 (SRRR) or A39-16 (SRRR) - Body ground	Always	10 kΩ or higher
A35-47 (SRLR) - A39-17 (SRLR)	Always	Below 1 Ω
A35-47 (SRLR) or A39-17 (SRLR) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.	RECONFIRM DTC

(a) Reconnect the A35 skid control ECU (brake booster with master cylinder assembly) connector.

(b) Reconnect the A39 brake actuator assembly connector.

Click here

Chassis > ABS/VSC/TRAC > Clear DTCs

(d) Turn the power switch off.

(e) Turn the power switch on (IG).

(f) Check if the same DTC is output.

Click here

Chassis > ABS/VSC/TRAC > Trouble Codes

Result	Proceed to
DTCs C1352, C1353, C1354, C1355, C1356, C1357, C1358 and C1359 are not output.	A
DTCs C1352, C1353, C1354, C1355, C1356, C1357, C1358 and/or C1359 are output.	B

USE SIMULATION METHOD TO CHECK

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY