Toyota Tundra (2015 year). Manual — part 1634
OK
(a) Disconnect the D50 or D54 Air Injection Control Driver
(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
D50-5 (+B) - Body
ground
Ignition switch
ON
11 to 14 V (near battery
voltage)
D54-5 (+B2) - Body
ground
Ignition switch
ON
11 to 14 V (near battery
voltage)
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
3.
CHECK HARNESS AND CONNECTOR (AIR INJECTION CONTROL DRIVER - ECM,
BODY GROUND)
(a) Disconnect the A24 or D74 ECM connector.
(b) Disconnect the D50 or D54 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
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1613,P1614...
OK
OK
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
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
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
4.
INSPECT AIR INJECTION CONTROL DRIVER (DI TERMINAL VOLTAGE)
(a) Disconnect the D50 or D54 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
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1613,P1614...
5.
PERFORM ACTIVE TEST USING TECHSTREAM
(a) Disconnect the D50 or D54 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.
3UR-FBE 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
(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
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1613,P1614...
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