Toyota Tundra (2015 year). Manual — part 1252

OK

3.

CHECK HARNESS AND CONNECTOR (AID - ECM, BODY GROUND)

(a) Disconnect the ECM connector.

(b) Disconnect the AID connector.

(c) Measure the resistance according to the value(s) in the table

below.

Standard Resistance:

TESTER CONNECTION

CONDITION

SPECIFIED

CONDITION

D74-54 (AIRP) - D50-4 (SIP)

Always

Below 1 Ω

D74-28 (AIRV) - D50-3 (SIV)

Always

Below 1 Ω

D74-53 (ARP2) - D54-4 (SIP2)

Always

Below 1 Ω

A24-43 (ARV2) - D54-3 (SIV2)

Always

Below 1 Ω

D74-30 (AIDI) - D50-2 (DI)

Always

Below 1 Ω

D74-29 (AID2) - D54-2 (DI2)

Always

Below 1 Ω

D50-1 (E) - Body ground

Always

Below 1 Ω

D54-1 (E2) - Body ground

Always

Below 1 Ω

D74-54 (AIRP) or D50-4 (SIP) -

Body ground

Always

10 kΩ or higher

D74-28 (AIRV) or D50-3 (SIV) -

Body ground

Always

10 kΩ or higher

D74-53 (ARP2) or D54-4 (SIP2) -

Body ground

Always

10 kΩ or higher

A24-43 (ARV2) or D54-3 (SIV2) -

Body ground

Always

10 kΩ or higher

D74-30 (AIDI) or D50-2 (DI) -

Body ground

Always

10 kΩ or higher

D74-29 (AID2) or D54-2 (DI2) -

Body ground

Always

10 kΩ or higher

1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1613,P1614; ...

OK

OK

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.

INSPECT AIR INJECTION CONTROL DRIVER (DI TERMINAL VOLTAGE)

(a) Disconnect the AID connector.

(b) Turn the ignition switch to ON.

(c) Measure the voltage according to the value(s) in the table

below.

Standard Voltage:

TESTER CONNECTION

SWITCH

CONDITION

SPECIFIED CONDITION

D50-2 (DI) - D50-1

(E)

Ignition switch

ON

11 to 14 V (near battery

voltage)

D54-2 (DI2) - D54-1

(E2)

Ignition switch

ON

11 to 14 V (near battery

voltage)

NG

REPLACE ECM

5.

PERFORM ACTIVE TEST USING TECHSTREAM

1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1613,P1614; ...

(a) Disconnect the AID connector.

(d) Turn the ignition switch to ON and turn the Techstream on.

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

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

(f) Start the engine.

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

1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1613,P1614; ...

(i) Turn the ignition switch off.

NOTICE:

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

1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1613,P1614; ...