Toyota Tacoma (2015-2018) Service Manual: Precaution

Toyota Tacoma (2015-2018) Service Manual / Engine Immobiliser / Engine Immobiliser System(w/ Smart Key System) / Precaution

PRECAUTION

1. PRECAUTIONS WHEN USING TECHSTREAM

(a) When using the Techstream with the engine switch off to troubleshoot: Connect the Techstream to the DLC3, and turn a courtesy light switch on and off at 1.5 second or less intervals until communication between the Techstream and vehicle begins.

(b) After all DTCs are cleared, check if the trouble occurs again 6 seconds after turning the engine switch on (IG).

2. PRECAUTION FOR REGISTRATION

(a) If replacing any of the following parts, refer to the registration procedures (See page NOTICE: ).

NOTICE:

Any keys or ECUs for which registration has been performed cannot be reused.

(1) Certification ECU (smart key ECU assembly)

(2) Steering lock ECU (steering lock actuator or upr bracket assembly)

(3) Electrical key transmitter sub-assembly

(b) After replacing the steering lock ECU (steering lock actuator or upr bracket assembly), confirm the lock/unlock operation of the steering lock.

Operation

Steering Lock	Operation Condition
Locks	With the engine switch off, open and close any door.
Unlocks	Turn the engine switch from off to on (ACC) or on (IG).

3. PRECAUTIONS FOR BATTERY

(a) Immediately after disconnecting and reconnecting the battery cable, the entry unlock function may not operate. If this occurs, the entry unlock function can be restored by performing a wireless door lock and unlock operation.

(b) When the battery is discharged, if the battery of another vehicle is used to jump start the engine, move the shift lever to P and open and close the driver door with the engine switch off before starting the engine.

(c) After the battery is removed and reinstalled, be sure to wait 10 seconds or more before the next engine start. The engine may not start immediately after the battery is reinstalled.

HINT:

After disconnecting and reconnecting the battery cable, the engine may not start on the first attempt. If this occurs, turn the engine switch off. The engine will start normally from the second time onward.
When the battery cable is disconnected and reconnected, the power source mode returns to the mode it was in before the battery cable was disconnected.

Parts Location

PARTS LOCATION ILLUSTRATION ILLUSTRATION ...

System Description

SYSTEM DESCRIPTION 1. ENGINE IMMOBILISER SYSTEM DESCRIPTION (a) The engine immobiliser system determines whether or not to enable starting of the SFI system based on a comparison of the key ID cod ...

Other materials:

Transmission Fluid Temperature Sensor "B" Circuit Low Input (P2742,P2743)
DESCRIPTION The No. 2 ATF temperature sensor is installed in the transmission valve body assembly. If the ECM detects an abnormally high ATF temperature near this sensor, it illuminates the warning indicator. HINT: The temperature of ATF easily rises when towing, climbing hills, in ...

Lost Communication with ECM / PCM "A" (U0100,U0101,U0123,U0126,U0129,U0142,U0155)
DESCRIPTION When a malfunction is detected between various ECUs and sensors, these DTCs are stored. DTC No. Detection Item DTC Detection Condition Trouble Area U0100 Lost Communication with ECM / PCM "A" ...

Diagnosis System
DIAGNOSIS SYSTEM 1. DESCRIPTION (a) To check DTCs, connect the Techstream to the Data Link Connector 3 (DLC3) of the vehicle. The Techstream displays DTCs and freeze frame data. The DTCs and freeze frame data can be cleared with the Techstream (See page ). 2. NORMAL MODE AND CHECK MODE (a) ...