Toyota Tundra (2015 year). Manual — part 2370
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Last Modified: 9-16-2014
6.6 C
Doc ID: RM000002X2G04SX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: B279C; Theft Deterrent System Presence
Detection; 2015 MY Tundra [08/2014 - ]
DTC
B279C
Theft Deterrent System Presence Detection
DESCRIPTION
If an ECM that is incompatible with the engine immobiliser system is installed, the ECM outputs this DTC.
DTC
CODE
DTC DETECTION CONDITION
TROUBLE
AREA
B279C
ECM for vehicle without engine immobiliser system is installed on vehicle with engine
immobiliser system
ECM
INSPECTION PROCEDURE
PROCEDURE
1.
CLEAR DTC
(a) Clear the DTC
.
2.
CHECK FOR DTC
(a) Check for DTC
.
OK:
DTC B279C is not output.
Result
RESULT
PROCEED TO
OK
A
NG (for 1UR-FE)
B
NG (for 3UR-FE)
C
NG (for 3UR-FBE)
D
ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: B279C; T...
B
REPLACE ECM
C
REPLACE ECM
D
REPLACE ECM
A
USE SIMULATION METHOD TO CHECK
ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: B279C; T...
Last Modified: 9-16-2014
6.6 J
Doc ID: RM000002X1G00NX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: Security Indicator Light Circuit; 2015 MY Tundra
[08/2014 - ]
Security Indicator Light Circuit
DESCRIPTION
When a key is registered, the transponder key ECU outputs the key registration condition by lighting up, blinking
or turning OFF the security indicator light.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
When the transponder key ECU is replaced, reregister the ECU - ECM communication ID
.
PROCEDURE
1.
PERFORM ACTIVE TEST USING TECHSTREAM (SECURITY INDICATOR LIGHT)
(a) Select the Active Test and use the Techstream to generate a command.
(b) Check that the security indicator light operation is normal.
Immobiliser
TESTER DISPLAY
TEST PART
CONTROL RANGE
DIAGNOSTIC NOTE
Security Indicator
Security indicator light
ON/OFF
-
OK:
ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: Security I...
OK
Security indicator light turns ON and OFF.
NG
GO TO STEP 3
2.
CHECK TRANSPONDER KEY ECU
(a) Remove the transponder key ECU with the connector still
connected
.
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J26-8 (IND) - Body ground
Engine immobiliser system is set
Alternating between 11 to 14 V and below 1 V
NG
REPLACE TRANSPONDER KEY ECU
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN
IN PROBLEM SYMPTOMS TABLE
3.
CHECK HARNESS AND CONNECTOR (SECURITY INDICATOR LIGHT - TRANSPONDER
KEY ECU)
(a) Disconnect the J28 combination meter connector.
ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: Security I...
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