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
|
1. |
VEHICLE BROUGHT TO WORKSHOP |
|
.gif)
|
2. |
CUSTOMER PROBLEM ANALYSIS |
(a) Interview the customer to confirm the trouble.
|
|
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.
|
|
4. |
CHECK FOR DTC (AIR CONDITIONING SYSTEM)* |
(a) Clear the DTCs.
Click here .gif)
(b) Check for DTCs.
Click here
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
DTCs are output |
B |
| B | .gif) |
GO TO DIAGNOSTIC TROUBLE CODE CHART |
|
|
5. |
CHECK FOR DTC (SEAT HEATER SYSTEM)* |
(a) Clear the DTCs.
Click here
(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 |
|
|
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 |
|
|
7. |
OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Operation Check
Click here
(b) Terminals of ECU
Click here
(c) Data List / Active Test
Click here
|
|
8. |
REPAIR OR REPLACE |
|
|
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:
Clearance Sonar Main Switch Circuit
DESCRIPTION
The back sonar or clearance sonar switch assembly is installed at the base of
the driver side of the instrument panel.
When the back sonar or clearance sonar switch assembly is turned on, an on signal
is sent to the clearance warning ECU assembly. The intuitive parking assist syste ...
Front Differential Oil Temperature Sensor Circuit High (P17C8)
DESCRIPTION
This DTC is output when a short to B+ or open circuit in the oil temperature
sensor is detected.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
P17C8
Front Differential Oil Temperature Sensor Circuit ...
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL CONSOLE COMPARTMENT DOOR HINGE SUB-ASSEMBLY
(a) Engage the 2 guides to install the console compartment door hinge
sub-assembly.
(b) Install the 4 screws.
(c) Engage the 2 guides and 4 claws ...
