Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000014VLP
Model Year Start: 2018 Model: Camry HV Prod Date Range: [07/2017 - 09/2018]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: C1247,C1392; Stroke Sensor; 2018 MY Camry HV [07/2017 - 09/2018]

DTC

C1247

Stroke Sensor

DTC

C1392

Zero Point Calibration of Stroke Sensor undone

DESCRIPTION

The brake pedal stroke sensor assembly sends a signal about the pedal stroke to the skid control ECU (brake booster with master cylinder assembly).

DTC No.

Detection Item

INF Code

DTC Detection Condition

Trouble Area

Note

C1247

Stroke Sensor

211

212

213

214

215

216

217
  • INF Code: 211
    • The sensor supply voltage (VCSK) is 4.7 V or less, or 5.3 V or more for 0.2 seconds or more.
  • INF Code: 212
    • The sensor output voltage 1 (SKS1) is less than 0.3 V, or 4.7 V or more for 0.2 seconds or more.
  • INF Code: 213
    • The sensor output voltage 2 (SKS2) is less than 0.3 V, or 4.7 V or more for 0.2 seconds or more.
  • INF Code: 214
    • The difference between the current value and previous value of the sensor output voltage 1 (SKS1) is 8.5% or more for 0.2 seconds or more.
  • INF Code: 215
    • The difference between the current value and previous value of the sensor output voltage 2 (SKS2) is 8.5% or more for 0.2 seconds or more.
  • INF Code: 216
    • The difference in change between sensor output voltage 1 (SKS1) and sensor output voltage 2 (SKS2) is excessively large for 0.2 seconds or more.

      (The comparison value of SKS1 and SKS2 is invalid.)

  • INF Code: 217
    • Sensor data is invalid for 0.2 seconds or more.

      (The sensor data of SKS1 and SKS2 is invalid.)
  • INF Code: 211
    • Open or short in brake pedal stroke sensor assembly power supply circuit
    • Improperly connected connector, deformation or corrosion of terminals
    • Skid control ECU (brake booster with master cylinder assembly)
  • INF Code: 212, 213, 214, 215, 216, 217
    • Open or short in wire harness
    • Improperly connected connector, deformation or corrosion of terminals
    • Brake pedal stroke sensor assembly

Electronically controlled brake system DTC

C1392

Zero Point Calibration of Stroke Sensor undone

1124

The brake pedal stroke sensor assembly zero point calibration is not performed.

(Normal brake pedal stroke sensor assembly zero point not memorized.)

Normal brake pedal stroke sensor assembly zero point not memorized.

(Linear solenoid valve offset learning is not performed or Test Mode is not performed or not complete.)

Electronically controlled brake system DTC

HINT:

During Test Mode, related DTCs are cleared.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

After replacing the skid control ECU (brake booster with master cylinder assembly) or brake pedal stroke sensor 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 2018 MY Camry HV [07/2017 - 09/2018]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: INITIALIZATION

HINT:

Check the condition of each related circuit connector before troubleshooting.

Click here 2018 - 2024 MY Camry HV [07/2017 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: ELECTRONIC CIRCUIT INSPECTION PROCEDURE

PROCEDURE

1.

CHECK BRAKE PEDAL

(a) Check that the brake pedal and the brake pedal stroke sensor assembly are properly installed and that the pedal can be depressed normally.

(b) Check and adjust the brake pedal height.

Click here 2018 MY Camry HV [07/2017 - 09/2018]; BRAKE SYSTEM (OTHER): BRAKE PEDAL: ADJUSTMENT+

(c) Adjust the brake pedal stroke sensor assembly.

Click here 2018 MY Camry HV [07/2017 - 09/2018]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE PEDAL STROKE SENSOR: INSTALLATION+

NEXT

2.

CHECK HARNESS AND CONNECTOR (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY - BRAKE PEDAL STROKE SENSOR ASSEMBLY)

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

OK:

The connector is securely connected.

(b) Disconnect the A40 skid control ECU (brake booster with master cylinder assembly) connector.

(c) Disconnect the A39 brake pedal stroke sensor assembly connector.

(d) Check both the connector case and the terminals for deformation and corrosion.

OK:

No deformation or corrosion.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

A40-13 (SKG1) - A39-5 (SKG)

Always

Below 1 Ω

A40-13 (SKG1) or A39-5 (SKG) - Body ground

Always

10 kΩ or higher

A40-17 (SKS1) - A39-6 (SKS1)

Always

Below 1 Ω

A40-17 (SKS1) or A39-6 (SKS1) - Body ground

Always

10 kΩ or higher

A40-19 (SKS2) - A39-1 (SKS2)

Always

Below 1 Ω

A40-19 (SKS2) or A39-1 (SKS2) - Body ground

Always

10 kΩ or higher

A40-21 (VSK2) - A39-2 (VSK2)

Always

Below 1 Ω

A40-21 (VSK2) or A39-2 (VSK2) - Body ground

Always

10 kΩ or higher

A40-25 (VSK1) - A39-4 (VCSK)

Always

Below 1 Ω

A40-25 (VSK1) or A39-4 (VCSK) - Body ground

Always

10 kΩ or higher

A40-33 (SKG2) - A39-3 (SKG2)

Always

Below 1 Ω

A40-33 (SKG2) or A39-3 (SKG2) - Body ground

Always

10 kΩ or higher
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

3.

INSPECT BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (SENSOR OUTPUT)

(a) Reconnect the A40 skid control ECU (brake booster with master cylinder assembly) connector.

*a

Front view of wire harness connector

(to Brake Pedal Stroke Sensor Assembly)

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

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

A39-4 (VCSK) - A39-5 (SKG)

Power switch on (IG)

4.84 to 5.16 V

A39-2 (VSK2) - A39-3 (SKG2)

Power switch on (IG)

4.84 to 5.16 V
OK

REPLACE BRAKE PEDAL STROKE SENSOR ASSEMBLY

NG

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY