RM35X0E _51 Engine / Hybrid System _078884 CRUISE CONTROL _0382737 SPEED LIMITER SYSTEM C

CRUISE CONTROL  SPEED LIMITER SYSTEM  P157804  Brake System System Internal Failure  


DESCRIPTION

The speed limiter system uses the wheel speed signal that is sent from the skid control ECU (brake actuator assembly).

This DTC indicates a malfunction in a wheel speed sensor of the skid control ECU (brake actuator assembly).

DTC No. Detection Item DTC Detection Condition Trouble Area
P157804 Brake System System Internal Failure Information of wheel speed sensor malfunction is received from the skid control ECU (brake actuator assembly).
·

Skid control ECU (Brake actuator assembly)

·

Wheel speed sensor

·

ECM



CAUTION / NOTICE / HINT

NOTICE:

When this DTC is stored, speed limiter system operation will be prohibited. Even after DTCs are cleared, operation of the speed limiter system will remain prohibited until the following is performed.

·

Turn the ignition switch from off to ON, drive the vehicle at a speed of 15 km/h (9 mph) or more for at least 10 seconds, then turn the speed limiter system on.



HINT:

The DTCs related to the electronically controlled brake system will be stored at the same time. In that case, perform troubleshooting for the electronically controlled brake system first.


PROCEDURE

1.CHECK FOR DTCS (DTC U012200)
NOTICE:

When DTC U012200 is stored, DTC P157804 may be stored at the same time. Therefore perform troubleshooting for DTC U012200 first.


a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine / Trouble Codes.


e.

Check for DTCs.

Click hereEngine / Hybrid System>CRUISE CONTROL>SPEED LIMITER SYSTEM>DTC CHECK / CLEAR

Powertrain > Engine > Trouble Codes
50001 372

Result:
Result Proceed to
DTC U012200 is not output A
DTC U012200 is output B



A

2.CHECK FOR DTCS (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)

B

GO TO DTC CHART

Click hereEngine / Hybrid System>CRUISE CONTROL>SPEED LIMITER SYSTEM>DIAGNOSTIC TROUBLE CODE CHART


2.CHECK FOR DTCS (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Chassis / Brake / Trouble Codes.


e.

Check for DTCs.

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ VSC OFF Switch)>DTC CHECK / CLEAR

Chassis > Brake > Trouble Codes
50001 435

Result:
Result Proceed to
DTCs are not output A
DTCs are output B



A

3.CHECK FOR DTC (DTC P157804)

B

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ VSC OFF Switch)>DIAGNOSTIC TROUBLE CODE CHART


3.CHECK FOR DTC (DTC P157804)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Clear the DTCs.

Click hereEngine / Hybrid System>CRUISE CONTROL>SPEED LIMITER SYSTEM>DTC CHECK / CLEAR

Powertrain > Engine > Clear DTCs
50002 372

e.

Perform the following to make sure that the DTC detection conditions are met.

HINT:

If the detection conditions are not met, the malfunction cannot be detected.


i.

Drive the vehicle at a speed for which speed limiter system operation is possible.


ii.

Turn the speed limiter system on and drive the vehicle for more than 10 seconds.



f.

Check for DTCs.

Click hereEngine / Hybrid System>CRUISE CONTROL>SPEED LIMITER SYSTEM>DTC CHECK / CLEAR

Powertrain > Engine > Trouble Codes
50001 372

Result:
Result Proceed to
DTC P157804 is not output A
DTC P157804 is output B



A

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


B

REPLACE ECM

for 7GR-FKS: Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>ECM>REMOVAL

for 1GD-FTV: Click hereEngine / Hybrid System>1GD-FTV (ENGINE CONTROL)>ECM>REMOVAL