DTC P1585: Acceleration Sensor Circuit [08/2016 - ]: Description

The ECM determines the vehicle inclination based on a signal from the airbag sensor assembly (yaw rate and acceleration sensor). If a malfunction of the airbag sensor assembly (yaw rate and acceleration sensor) is determined based on a malfunction signal from the brake actuator assembly (skid control ECU), the ECM stores a DTC.

HINT:

The airbag sensor assembly (yaw rate and acceleration sensor) signal is sent to the brake actuator assembly (skid control ECU) via CAN communication.
If CAN communication DTCs are output, perform troubleshooting for those DTCs first.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory
P1585	Acceleration Sensor Circuit	1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other DTC Detection Condition 1 The ignition switch is ON. The output value of the airbag sensor assembly (yaw rate and acceleration sensor) remains at -1.5 G or less, or 1.5 G or more for at least 1.2 seconds. 0.5 seconds or more 1-trip detection logic DTC Detection Condition 2 The ignition switch is ON. The airbag sensor assembly (yaw rate and acceleration sensor) power source voltage is at 4.4 V or less, or 5.6 V or higher for 1.2 seconds or more. 0.5 seconds or more 1-trip detection logic DTC Detection Condition 3 The ignition switch is ON. No signal from the airbag sensor assembly (yaw rate and acceleration sensor) is detected 7 times or more. 0.5 seconds or more 1-trip detection logic DTC Detection Condition 4 The ignition switch is ON. With the vehicle stopped, the difference between GL1 and GL2 does not become less than 0.4 G within 60 seconds after exceeding 0.6 G. 0.5 seconds or more 1-trip detection logic DTC Detection Condition 5 The ignition switch is ON. An airbag sensor assembly (yaw rate and acceleration sensor) power source voltage malfunction signal is received for at least 10 seconds with the vehicle speed at 3 km/h (1.8 mph) or more. 0.5 seconds or more 1-trip detection logic	Airbag sensor assembly (Yaw rate and acceleration sensor) Brake actuator assembly (Skid control ECU) CAN communication system	Does not come on	DTC stored

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

P1585

Acceleration Sensor Circuit

1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other
DTC Detection Condition 1

The ignition switch is ON.
The output value of the airbag sensor assembly (yaw rate and acceleration sensor) remains at -1.5 G or less, or 1.5 G or more for at least 1.2 seconds.
0.5 seconds or more
1-trip detection logic

DTC Detection Condition 2

The ignition switch is ON.
The airbag sensor assembly (yaw rate and acceleration sensor) power source voltage is at 4.4 V or less, or 5.6 V or higher for 1.2 seconds or more.
0.5 seconds or more
1-trip detection logic

DTC Detection Condition 3

The ignition switch is ON.
No signal from the airbag sensor assembly (yaw rate and acceleration sensor) is detected 7 times or more.
0.5 seconds or more
1-trip detection logic

DTC Detection Condition 4

The ignition switch is ON.
With the vehicle stopped, the difference between GL1 and GL2 does not become less than 0.4 G within 60 seconds after exceeding 0.6 G.
0.5 seconds or more
1-trip detection logic

DTC Detection Condition 5

The ignition switch is ON.
An airbag sensor assembly (yaw rate and acceleration sensor) power source voltage malfunction signal is received for at least 10 seconds with the vehicle speed at 3 km/h (1.8 mph) or more.
0.5 seconds or more
1-trip detection logic

Airbag sensor assembly (Yaw rate and acceleration sensor)
Brake actuator assembly (Skid control ECU)
CAN communication system

Does not come on

DTC stored