Toyota Tacoma 2015-2018 Service Manual: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use this procedure to troubleshoot the seat heater system.
- *: Use the Techstream.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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2. |
CUSTOMER PROBLEM ANALYSIS |
(a) Interview the customer to confirm the trouble.
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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.
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4. |
CHECK FOR DTC (AIR CONDITIONING SYSTEM)* |
(a) Clear the DTCs.
Click here .gif)
(b) Check for DTCs.
Click here
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Result |
Proceed to |
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DTCs are not output |
A |
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DTCs are output |
B |
| B | .gif) |
GO TO DIAGNOSTIC TROUBLE CODE CHART |
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5. |
CHECK FOR DTC (SEAT HEATER SYSTEM)* |
(a) Clear the DTCs.
Click here
(b) Check for DTCs.
Click here
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Result |
Proceed to |
|---|---|
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DTCs are not output |
A |
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DTCs are output |
B |
| B | |
GO TO DIAGNOSTIC TROUBLE CODE CHART |
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6. |
PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table.
Click here
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Result |
Proceed to |
|---|---|
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Fault is not listed in Problem Symptoms Table |
A |
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Fault is listed in Problem Symptoms Table |
B |
| B | |
GO TO STEP 8 |
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7. |
OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Operation Check
Click here
(b) Terminals of ECU
Click here
(c) Data List / Active Test
Click here
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8. |
REPAIR OR REPLACE |
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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:
Power Window Motor Malfunction (B2311)
DESCRIPTION
The power window regulator motor assemblies are operated by the power window
regulator master switch assembly, front power window regulator switch assembly RH.
The power window regulator motor assemblies have motor, regulator and ECU functions.
This DTC is output when the power win ...
Disassembly
DISASSEMBLY
PROCEDURE
1. INSPECT COUNTERSHAFT REVERSE GEAR THRUST CLEARANCE
(a) Using a dial indicator, measure the countershaft reverse gear thrust
clearance.
Standard clearance:
0.150 to 0.300 mm (0.0060 to 0.0118 in.)
If the clearance is outside the specification, repl ...
Light Sensor Circuit Malfunction (B1244)
DESCRIPTION
This DTC is output when a failure of the automatic light control sensor circuit
is detected.
DTC Code
DTC Detection Condition
Trouble Area
B1244
When either condition below is met:
Malfunction of light sensor ...