Toyota Tundra (2015 year). Manual — part 2038

OK

Standard Current:

TESTER OPERATION

AIR PUMP

ASV

SPECIFIED CONDITION

AIR PUMP: ON, ASV: OPEN

ON

OPEN

10 to 40 A

AIR PUMP: OFF, ASV: CLOSE

OFF

CLOSE

Below 1 A

NOTICE:

the prohibition (WAIT or ERROR).

If ERROR is displayed on the Techstream during the test, stop the engine for 10 minutes, and then

try again.

GO TO STEP 17

15.

PERFORM ACTIVE TEST USING TECHSTREAM

(a) Disconnect the AID connectors.

3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2444-P2447;...

(d) Turn the ignition switch to ON.

(e) Turn the Techstream on.

(f) Enter the following menus: Powertrain / Engine and ECT / Utility / Air Injection Check / Manual

Mode / AIR PUMP 1: ON, ASV 1: OPEN or AIR PUMP 2: ON, ASV 2: OPEN.

HINT:

When Manual Mode is selected, the Techstream initialization (atmospheric pressure measurement) is

performed automatically. The initialization takes 10 seconds. After the initialization, AIR PUMP and ASV
operation can be selected.

(g) Start the engine.

(h) Perform the AIR system forced operation while the engine is idling.

(j) Turn the ignition switch off.

NOTICE:

3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2444-P2447;...

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

D50-3 (SIV) - D50-1 (E)

AIR PUMP: ON, ASV: OPEN

0.5 to 2 V

D54-3 (SIV2) - D54-1 (E2)

AIR PUMP: ON, ASV: OPEN

0.5 to 2 V

D50-3 (SIV) - D50-1 (E)

AIR PUMP: OFF, ASV: CLOSE

11 to 14 V

D54-3 (SIV2) - D54-1 (E2)

AIR PUMP: OFF, ASV: CLOSE

11 to 14 V

(l) Connect the Techstream to the DLC3.

(m) Turn the ignition switch to ON.

(n) Turn the Techstream on.

(o) Enter the following menus: Powertrain / Engine and ECT / Utility / Air Injection Check /

Manual Mode / AIR PUMP 1: ON, ASV 1: OPEN or AIR PUMP 2: ON, ASV 2: OPEN.

3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2444-P2447;...

OK

NEXT

HINT:

When Manual Mode is selected, the Techstream initialization (atmospheric pressure measurement) is

performed automatically. The initialization takes 10 seconds. After the initialization, AIR PUMP and ASV
operation can be selected.

(p) Start the engine.

(q) Perform the AIR system forced operation while the engine is idling.

(s) Turn the ignition switch off.

NOTICE:

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

D50-4 (SIP) - D50-1 (E)

AIR PUMP: ON, ASV: OPEN

0.5 to 2 V

D54-4 (SIP2) - D54-1 (E2)

AIR PUMP: ON, ASV: OPEN

0.5 to 2 V

D50-4 (SIP) - D50-1 (E)

AIR PUMP: OFF, ASV: CLOSE

11 to 14 V

D54-4 (SIP2) - D54-1 (E2)

AIR PUMP: OFF, ASV: CLOSE

11 to 14 V

NG

REPLACE ECM

16.

REPLACE AIR INJECTION CONTROL DRIVER

(a) Replace the air injection control driver

.

NEXT

GO TO STEP 18

17.

REPLACE AIR PUMP ASSEMBLY

Replace air pump assembly

.

3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2444-P2447;...