Toyota Tacoma (2015-2018) Service Manual: Crawl Indicator Light does not Come ON
DESCRIPTION
Refer to Crawl Indicator Light Remains ON (See page
.gif)
).
WIRING DIAGRAM
Refer to Crawl Indicator Light Remains ON (See page
).
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the skid control ECU (master cylinder solenoid), perform
calibration (See page
).
- Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
|
1. |
CHECK CAN COMMUNICATION SYSTEM |
| NG | .gif) |
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
|
.gif)
|
2. |
READ VALUE USING TECHSTREAM (CRAWL CONTROL SWITCH) |
| NG | |
GO TO STEP 4 |
|
|
3. |
PERFORM ACTIVE TEST USING TECHSTREAM (CRAWL CONTROL LIGHT) |
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / ABS/VSC/TRAC / Active Test.
ABS/VSC/TRAC|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Crawl Control Light |
CRAWL indicator light |
Indicator light ON/OFF |
Observe the combination meter. |
(f) Check the Techstream display condition of the brake warning light.
Result|
Result |
Proceed to |
|---|---|
|
Display of the Data List remains OFF |
A |
|
Display of the Data List remains ON |
B |
| A | |
GO TO METER / GAUGE SYSTEM |
| B | |
REPLACE MASTER CYLINDER SOLENOID |
|
4. |
INSPECT DRIVE MONITOR SWITCH |
| NG | |
REPLACE DRIVE MONITOR SWITCH |
|
|
5. |
INSPECT ROOF CONSOLE BOX ASSEMBLY |
| A | |
REPAIR OR REPLACE HARNESS OR CONNECTOR (MASTER CYLINDER SOLENOID - ROOF CONSOLE BOX ASSEMBLY) |
| B | |
REPLACE ROOF CONSOLE BOX ASSEMBLY |
| C | |
REPLACE ROOF CONSOLE BOX ASSEMBLY |
ABS Warning Light Remains ON
DESCRIPTION
If any of the following is detected, the ABS warning light remains on.
The skid control ECU (master cylinder solenoid) connectors are disconnected
from the skid control ECU (m ...
Crawl Indicator Light Remains ON
DESCRIPTION
When CRAWL starts after operating the CRAWL switch (drive monitor switch), the
CRAWL indicator light turns on. While CRAWL is in the process of stopping, the CRAWL
indicator light beg ...
Other materials:
Check Bus 3 Lines for Short Circuit
DESCRIPTION
There may be a short circuit between the CAN main bus lines and/or CAN branch
lines when the resistance between terminals 6 (CA3H) and 21 (CA3L) of the central
gateway ECU (network gateway ECU) is below 54 Ω.
Detection Item
Trouble Area
Resis ...
Back-up Light Switch
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT BACK-UP LIGHT SWITCH ASSEMBLY
(a) Measure the resistance according to the value(s) in the table below.
Text in Illustration
*a
Pushed
...
VSC OFF Indicator Light Remains ON
DESCRIPTION
In 2WD mode:
Operation of the VSC OFF switch changes the vehicle between normal mode,
TRAC OFF mode (AUTO LSD mode) and VSC OFF mode. During normal mode, pressing
the VSC OFF switch for a short amount of time changes the vehicle to TRAC
OFF mode (AUTO LSD mode), TR ...
