Toyota Tundra (2015 year). Manual — part 2362

TESTER DISPLAY

TEST PART

CONTROL RANGE

DIAGNOSTIC NOTE

Security Indicator

Security indicator light

ON/OFF

-

ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: DATA LI...

Last Modified: 9-16-2014

6.6 C

Doc ID: RM000001TCI034X

Model Year: 2015

Model: Tundra

Prod Date Range: [08/2014 - ]

Title: ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: B2780; Push Switch / Key Unlock Warning Switch

Malfunction; 2015 MY Tundra [08/2014 - ]

DTC

B2780

Push Switch / Key Unlock Warning Switch Malfunction

DESCRIPTION

This DTC will be output if the transponder key ECU does not detect that the unlock warning switch is ON even

when the ignition switch is ON. Under normal conditions, the unlock warning switch is ON when the ignition switch

is ON.

DTC

CODE

DTC DETECTION CONDITION

TROUBLE AREA

B2780

Unlock warning switch ON is not detected when the ignition switch is

ON.

Transponder key

ECU

Unlock warning

switch

Harness or connector

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT:

When the transponder key ECU is replaced, reregister the ECU - ECM communication ID

.

PROCEDURE

1.

CLEAR DTC

ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: B2780; P...

NEXT

(a) Clear the DTC

.

2.

CHECK FOR DTC

(a) Check for DTC

.

OK:

DTC B2780 is not output.

NG

GO TO STEP 3

OK

USE SIMULATION METHOD TO CHECK

3.

READ VALUE USING TECHSTREAM (UNLOCK WARNING SWITCH)

(a) Use the Data List to check if the unlock warning switch is functioning properly.

Immobiliser

TESTER

DISPLAY

MEASUREMENT ITEM/RANGE

NORMAL CONDITION

DIAGNOSTIC

NOTE

Key SW

Unlock warning switch signal / ON or

OFF

ON: Key is in ignition key cylinder

OFF: No key is in ignition key

cylinder

-

OK:

ON (key is in ignition key cylinder) appears on the screen.

NG

GO TO STEP 4

OK

REPLACE TRANSPONDER KEY ECU

4.

INSPECT UNLOCK WARNING SWITCH

ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: B2780; P...