Toyota Tacoma (2015-2018) Service Manual: Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.
NOTICE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Data List.
(e) According to the display on the Techstream, read the Data List.
Main Body|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Key Unlock Warning SW*1 |
Unlock warning switch/ON or OFF |
ON: Key is inserted into ignition key cylinder OFF: Key is removed from ignition key cylinder |
- |
|
ACC SW |
Ignition switch/ON or OFF |
ON: Ignition switch ACC OFF: Ignition switch off |
- |
|
IG SW |
Ignition switch/ON or OFF |
ON: Ignition switch ON OFF: Ignition switch off or ACC |
- |
|
RR Door Courtesy SW |
Rear door courtesy light switch RH/ON or OFF |
ON: Rear door RH open OFF: Rear door RH closed |
- |
|
RL Door Courtesy SW |
Rear door courtesy light switch LH/ON or OFF |
ON: Rear door LH open OFF: Rear door LH closed |
- |
|
FR Door Lock Pos |
Front door RH unlock detection switch/LOCK or UNLOCK |
LOCK: Front door RH locked UNLOCK: Front door RH unlocked |
- |
|
FR Door Courtesy |
Front door courtesy light switch RH/ON or OFF |
ON: Front door RH closed OFF: Front door RH open |
- |
|
FL Door Lock Pos |
Front door LH unlock detection switch/LOCK or UNLOCK |
LOCK: Front door LH locked UNLOCK: Front door LH unlocked |
- |
|
FL Door Courtesy |
Front door courtesy light switch LH/ON or OFF |
ON: Front door LH closed OFF: Front door LH open |
- |
|
Hood Courtesy SW |
Engine hood courtesy switch/ON or OFF |
ON: Engine hood closed OFF: Engine hood open |
- |
|
RR-Door Lock Pos SW*2 |
Rear door RH unlock detection switch/ON or OFF |
ON: Rear door RH or LH unlocked OFF: Rear door RH and LH locked |
- |
|
RL-Door Lock Pos SW*2 |
Rear door LH unlock detection switch/ON or OFF |
ON: Rear door LH or RH unlocked OFF: Rear door LH and RH locked |
- |
- *1: w/o Smart Key System
- *2: for Double Cab
2. ACTIVE TEST
HINT:
Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. The Data List information can be displayed while performing Active Tests.
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body or Smart Key / Active Test.
(e) According to the display on the Techstream, perform the Active Test.
Main Body|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Illuminated Entry System |
Interior lights |
OFF/ON |
|
|
Taillight Relay |
Taillights |
OFF/ON |
- |
|
Headlight Relay |
Headlights |
OFF/ON |
- |
|
Security Indicator*1 |
Security indicator |
OFF/ON |
- |
|
Vehicle Horn |
Vehicle horns |
OFF/ON |
- |
|
Security Horn |
Security horn |
OFF/ON |
- |
- *1: w/o Smart Key System
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Immobiliser Indicator |
Security indicator light |
OFF/ON |
- |
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND DRIVER SIDE JUNCTION
BLOCK
(a) Disconnect the main body ECU (multiplex network body ECU) connectors.
Text in Illustration ...
Theft Deterrent System cannot be Set or Unset
DESCRIPTION
When the ignition switch is turned off and all doors and the engine hood are
closed, the theft deterrent system is set when doors are locked by wireless operation*1,
key linked operat ...
Other materials:
Driver Side Power Window Auto Up / Down Function does not Operate with Power
Window Master Switch
DESCRIPTION
If the manual up/down function can be performed but the auto up/down function
cannot, then the fail-safe mode may be functioning.
If the power window initialization (See page
) has not been performed, the auto up/down function will not operate.
WIRING DIAGRAM
CAUTION / NOTICE ...
Low Power Supply Voltage Malfunction (C1241)
DESCRIPTION
If there is a problem with the skid control ECU (master cylinder solenoid) power
supply circuit, the skid control ECU outputs the DTC and prohibits operation under
the fail-safe function.
If the voltage supplied to terminal IG1 is not within the DTC detection threshold
due to mal ...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Dynamic Radar Cruise Control System
DTC No.
Detection Item
MIL
Link
C1A02
Vehicle Information Not Obtained
Does not come on
C1A0A
Front Radar Se ...
