Toyota Tacoma (2015-2018) Service Manual: Data List / Active Test
DATA LIST / ACTIVE TEST
1. READ 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) Warm up the engine.
(b) Turn the A/C switch off.
(c) Turn the ignition switch off.
(d) Connect the Techstream to the DLC3.
(e) Turn the ignition switch to ON.
(f) Turn the Techstream on.
(g) Enter the following menus: Powertrain / Engine / Data List.
(h) According to the display on the Techstream, read the Data List.
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Battery Voltage |
Battery voltage / Min.: 0.0 V, Max.: 65.5 V |
11 to 14 V (Idling) |
If the result is not as specified, abnormal battery voltage is suspected. |
|
BATT Voltage |
BATT voltage / Min.: 0.0 V, Max.: 79.998 V |
11 to 14 V (Idling) |
- |
|
Alternator Output Duty Ratio |
Generator output duty / Min.: 0.0%, Max.: 399.9% |
Changes according to alternator output |
If the result is not as specified, a malfunction of the charging system is suspected. |
|
Alternator Voltage - Non Active Test |
Requested voltage when regulator forced drive is not executed Min.: 0.0 V, Max.: 79.998 V |
13.5 to 14.4 V: After engine start (varies with battery temperature or driving conditions) |
Active Test support data |
|
Voltage of Alternator |
Voltage of Alternator / Min.: 0.0 V, Max.: 79.9 V |
- |
- |
HINT:
Normal Condition: If no idling conditions are specified, the shift lever should be in N (Neutral) or P, and the A/C switch and all accessory switches should be off.
2. PERFORM 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. 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: Powertrain / Engine / Active Test.
(e) According to the display on the Techstream, perform the Active Test.
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Control the Voltage of Alternator |
Requested output voltage of generator regulator during forced activation |
Between 12.5 and 14.8 V |
Test is possible after engine start |
Freeze Frame Data
FREEZE FRAME DATA
1. DESCRIPTION
The ECM records vehicle and driving condition information as freeze frame data
the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful
...
Fail-safe Chart
FAIL-SAFE CHART
If any of the following DTCs are stored, the ECM enters fail-safe mode to allow
the vehicle to be driven temporarily.
DTC
Fail-safe Operation
Fail- ...
Other materials:
ABS Warning Light Remains ON
DESCRIPTION
The skid control ECU (brake actuator assembly) is connected to the combination
meter assembly via CAN communication.
If any of the following is detected, the ABS warning light remains on:
The skid control ECU (brake actuator assembly) connectors are disconnected
from the ...
Installation
INSTALLATION
PROCEDURE
1. INSPECT FRONT PROPELLER SHAFT ASSEMBLY (with Grease Fitting)
HINT:
When replacing the spider bearing, make sure that the grease fitting assembly
hole is facing in the direction shown in the illustration.
Text in Illustration
*1
No. 1 Grease Fi ...
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 ...
