Toyota Tundra (2015 year). Manual — part 1291
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.
(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: P2444-P2447;...
(k) Connect the Techstream to the DLC3.
(l) Turn the ignition switch to ON and turn the Techstream on.
(m) 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.
(n) Start the engine.
(o) Perform the AIR system forced operation while the engine is idling.
(q) Turn the ignition switch off.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2444-P2447;...
OK
NEXT
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
18.
REPLACE AIR INJECTION CONTROL DRIVER (FOR BANK 1 OR BANK 2)
(a) Replace the air injection control driver (for bank 1 or bank 2)
.
19.
CHECK WHETHER DTC OUTPUT RECURS (DTC P2444, P2445, P2446 AND/OR P2447)
(a) Start the engine and warm it up.
(b) Turn the ignition switch off.
(c) Connect the Techstream to the DLC3.
(d) Turn the ignition switch to ON.
(e) Turn the Techstream on.
(f) Clear DTCs (if set)
.
(g) Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check /
Automatic Mode.
(h) Start the engine after the Techstream initialization is finished.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2444-P2447;...
(i) Perform the System Check operation by pressing ENTER (Next).
(j) After operating the AIR system, perform the following to confirm the AIR system pending codes:
Press the Exit button.
(k) Check pending DTCs.
OK:
No pending DTC is output.
(l) Turn the ignition switch off.
NOTICE:
When performing the Secondary Air Injection Check operation after the battery cable has been
reconnected, wait for 7 minutes with the ignition switch turned to ON or the engine running.
Turn the ignition switch off when the Secondary Air Injection Check operation finishes.
NG
GO TO STEP 20
OK
END
20.
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION)
(a) Connect the Techstream to the DLC3.
(b) Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or
higher.
HINT:
When performing the Active Test, make sure the shift lever is in P or N.
The A/C switch and all accessory switches should be off.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step
Position.
(e) Confirm the Throttle Idle Position is ON and check the engine idling condition and MAP values in the
Data List while performing the Active Test.
HINT:
Do not leave the EGR valve open for 10 seconds or more during the Active Test.
Be sure to return the EGR valve to step 0 when the Active Test is completed.
OK:
MAP and idling condition change in response to EGR step position as follows.
Standard:
-
EGR STEP POSITION (ACTIVE TEST)
0 STEPS
0 TO 30 STEPS
Idling
condition
Steady idling
Idling changes from steady to rough idling or engine stall
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2444-P2447;...
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