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:
Correct driving posture
Drive in a good posture as follows:
Sit upright and well back in the
seat.
Adjust the position of the seat
forward or backward to ensure the pedals can be reached and easily depressed to
the extent required.
Adjust the seatback so that the
controls are easily operable.
Adjust the t ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" column of the
table. Check each sy ...
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL INDICATOR LIGHT WIRE SUB-ASSEMBLY
(a) Connect the connector to install the indicator light wire sub-assembly
to the shift position indicator.
(b) Attach the clamp to install the indicator light wire sub ...
