Toyota Tundra (2015 year). Manual — part 2050

NOTICE:

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Clear DTCs

.

(e) Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check /

Automatic Mode.

(f) After the Evaporative System Check is completed, check for pending DTCs by entering the following

menus: Powertrain / Engine and ECT / Trouble Codes

HINT:

If no pending DTCs are found, the repair has been successfully completed.

NEXT

END

3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System;...

Last Modified: 9-16-2014

6.6 J

Doc ID: RM000001DN80AYX

Model Year: 2015

Model: Tundra

Prod Date Range: [08/2014 - ]

Title: 3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: ECM Power Source Circuit; 2015 MY Tundra [08/2014

- ]

ECM Power Source Circuit

DESCRIPTION

INSPECTION PROCEDURE

PROCEDURE

1.

INSPECT FUSES (AM2, IG2 MAIN, EFI NO. 1, IGN)

3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: ECM Power S...

OK

(a) Remove the AM2 fuse, IG2 MAIN fuse, EFI NO. 1 fuse

and IGN fuse from the engine room relay block.

(b) Measure the resistance according to the value(s) in the

table below.

Standard resistance:

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

AM2 fuse

Always

Below 1 Ω

IG2 MAIN fuse

Always

Below 1 Ω

EFI NO. 1 fuse

Always

Below 1 Ω

IGN fuse

Always

Below 1 Ω

NG

CHECK FOR SHORT IN ALL HARNESSES AND

CONNECTORS CONNECTED TO FUSE AND

REPLACE FUSE

2.

INSPECT RELAY (IG2, EFI)

(a) Remove the integration relay from the engine room

relay block.

(b) Measure the resistance according to the value(s) in the

table below.

Standard resistance:

TESTER

CONNECTION

CONDITION

SPECIFIED

CONDITION

1C-1 - 1B-8

When no battery voltage is

applied to terminals 1B-6 and

1B-7

10 kΩ or higher

1C-1 - 1B-8

When battery voltage is

applied to terminals 1B-6 and

1B-7

Below 1 Ω

1C-1 - 1B-4

When no battery voltage is

applied to terminals 1B-2 and

1B-3

10 kΩ or higher

3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: ECM Power S...

OK

OK

TESTER

CONNECTION

CONDITION

SPECIFIED

CONDITION

1C-1 - 1B-4

When battery voltage is

applied to terminals 1B-2 and

1B-3

Below 1 Ω

NG

REPLACE RELAY

3.

CHECK HARNESS AND CONNECTOR (ECM - BODY GROUND)

(a) Disconnect the D74 ECM connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

D74-81 (E1) - Body ground

Always

Below 1 Ω

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.

INSPECT ECM (IGSW VOLTAGE)

3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: ECM Power S...