Toyota Tacoma manuals

Toyota Tacoma (2015-2018) Service Manual: How To Proceed With Troubleshooting

Toyota Tacoma (2015-2018) Service Manual / Seat / Seat Heater System / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

  • Use this procedure to troubleshoot the seat heater system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

NEXT

2.

CUSTOMER PROBLEM ANALYSIS

(a) Interview the customer to confirm the trouble.

NEXT

3.

INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage.

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

NEXT

4.

CHECK FOR DTC (AIR CONDITIONING SYSTEM)*

(a) Clear the DTCs.

Click here (b) Check for DTCs.

(b) Check for DTCs.

Click here

Result

Proceed to

DTCs are not output

A

DTCs are output

B

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

5.

CHECK FOR DTC (SEAT HEATER SYSTEM)*

(a) Clear the DTCs.

Click here (b) Check for DTCs.

(b) Check for DTCs.

Click here

Result

Proceed to

DTCs are not output

A

DTCs are output

B

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

6.

PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table.

Click here

Result

Proceed to

Fault is not listed in Problem Symptoms Table

A

Fault is listed in Problem Symptoms Table

B

B

GO TO STEP 8

A

7.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check

Click here (b) Terminals of ECU

(b) Terminals of ECU

Click here (c) Data List / Active Test

(c) Data List / Active Test

Click here

NEXT

8.

REPAIR OR REPLACE

NEXT

9.

CONFIRMATION TEST

NEXT

END

System Diagram
SYSTEM DIAGRAM ...

Operation Check
OPERATION CHECK 1. CHECK SEAT HEATER (a) Turn the ignition switch to ON. (b) Check that the indicator illuminates and the surface of the front seat warms up, when the seat heater switch on the ai ...

Other materials:

Terminals Of Ecu
TERMINALS OF ECU 1. CLEARANCE WARNING ECU ASSEMBLY (a) Disconnect the C30 connector from the clearance warning ECU assembly. (b) Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Descr ...

Removal
REMOVAL CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH side and LH side. The following procedure is for the LH side. PROCEDURE 1. PRECAUTION NOTICE: After turning the ignition switch off, waiting time may be required before disconnecting the cable from the ...

Pattern Select Switch Power Mode Circuit
DESCRIPTION The ECM memory contains the programs for the normal and PWR shift patterns. By following the programs corresponding to the signals from the pattern select switch assembly, park/neutral position switch and other various sensors, the ECM switches the shift solenoid valves on and off, ...

В© 2011-2024 Copyright www.ttguide.net