Toyota 4Runner manuals

Toyota 4Runner: On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT SEAT HEATER CONTROL SUB-ASSEMBLY LH

(a) Disconnect the b24 seat heater control sub-assembly LH connector.


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

b24-6 (E) - Body ground

Always

Below 1 Ω

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

b24-1 (SWL) - b24-6 (E)

Engine switch on (IG)

Refreshing seat switch LH side off

Below 1 V

Engine switch on (IG)

Refreshing seat switch LH side on

11 to 14 V

b24-4 (B) - b24-6 (E)

Engine switch off

Below 1 V

Engine switch on (IG)

11 to 14 V

Text in Illustration

*a

Front view of wire harness connector

(to Seat Heater Control Sub-assembly LH)

If the result is not as specified, there may be a malfunction on the wire harness side.

(d) Connect the b24 seat heater control sub-assembly LH connector.

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

b24-5 (THL) - Body ground

Engine switch on (IG)

Refreshing seat switch LH on, MIN → MAX

Gradual increase between value below 1 V and value from 11 to 14 V

Text in Illustration

*a

Component with harness connected

(Seat Heater Control Sub-assembly LH)

If the result is not as specified, the seat heater control sub-assembly LH may have a malfunction.


2. INSPECT SEAT HEATER CONTROL SUB-ASSEMBLY RH

(a) Disconnect the a15 seat heater control sub-assembly LH connector.


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

a15-6 (E) - Body ground

Always

Below 1 Ω

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

a15-1 (SWR) - a15-6 (E)

Engine switch on (IG)

Refreshing seat switch RH side off

Below 1 V

Engine switch on (IG)

Refreshing seat switch RH side on

11 to 14 V

a15-4 (B1) - a15-6 (E)

Engine switch off

Below 1 V

Engine switch on (IG)

11 to 14 V

Text in Illustration

*a

Front view of wire harness connector

(to Seat Heater Control Sub-assembly RH)

If the result is not as specified, there may be a malfunction on the wire harness side.

(d) Connect the a15 seat heater control sub-assembly LH connector.

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

a15-5 (THR) - Body ground

Engine switch on (IG)

Refreshing seat switch RH side on, MIN → MAX

Gradual increase between value below 1 V and value from 11 to 14 V

Text in Illustration

*a

Component with harness connected

(Seat Heater Control Sub-assembly RH)

If the result is not as specified, the seat heater control sub-assembly LH may have a malfunction.


Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are lis ...

Terminals Of Ecu
TERMINALS OF ECU 1. AIR CONDITIONING AMPLIFIER (a) Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color ...

Other materials about Toyota 4Runner:

Sending Malfunction (Navigation to APGS) (U0073,U0140)
DESCRIPTION These DTCs are stored when a malfunction occurs in the CAN communication circuit. DTC No. DTC Detection Condition Trouble Area U0073 CAN reception error CAN communication sys ...

Installation
INSTALLATION PROCEDURE 1. INSTALL LEVEL WARNING SWITCH ASSEMBLY (a) Install the level warning switch assembly to the packing of the washer jar. 2. INSTALL WASHER JAR PROTECTOR (a) Attach the 3 claws to install the washer jar protector. 3. INSTALL WASHER ...

© 2016-2020 | www.to4runner.net

0.0058