Toyota Venza manuals

Toyota Venza: Short in Sensor with Motor Power Supply Circuit (B2658)

Toyota Venza Service Manual / Seat / Front Power Seat Control System(w/ Memory) / Short in Sensor with Motor Power Supply Circuit (B2658)

DESCRIPTION

This DTC is stored if sensor voltage does not reach the designated voltage while the slide motor is operating.

DTC Code

DTC Detection Condition

Trouble Area

B2658

Malfunction in supply voltage for the seat slide control position sensor

  • Position control ECU and switch assembly
  • Slide motor (front seat frame with adjuster assembly LH)
  • Wire harness or connector

WIRING DIAGRAM


PROCEDURE

1.

CHECK FOR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Driver Seat / Trouble Codes.

(e) Clear the DTC (See page ).


(f) Recheck for DTC B2658.

Result

Proceed to

DTC B2658 is output

A

DTC B2658 is not output

B


B

USE SIMULATION METHOD TO CHECK


A

2.

CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU AND SWITCH ASSEMBLY - SLIDE MOTOR)

(a) Disconnect the T11 the position control ECU and switch assembly connector.

(b) Disconnect the T12 the slide motor (front seat frame with adjuster assembly LH).

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

T11-3 (PVCC) - T12-5 (VCC)

Always

Below 1 Ω

T11-2 (SSRS) - T12-2 (O/P)

Always

Below 1 Ω

T11-1 (SGND) - T12-6 (GND)

Always

Below 1 Ω

T11-3 (PVCC) - Body ground

Always

10 kΩ or higher

T11-2 (SSRS) - Body ground

Always

10 kΩ or higher

T11-1 (SGND) - Body ground

Always

10 kΩ or higher


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

3.

CHECK POSITION CONTROL ECU AND SWITCH ASSEMBLY

(a) Reconnect the T11 the position control ECU and switch assembly connector.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

T11-1 (SGND) - T11-3 (PVCC)

Slide switch on

5.5 to 6.5 V


OK

REPLACE FRONT SEAT FRAME WITH ADJUSTER ASSEMBLY LH


NG

REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY

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