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To check the air pump operation, use the Air Injection Check function described in the System NG : REPLACE AIR PUMP ASSEMBLY . (See AIR PUMP ). Fig. 220: Identifying Air Pump Connector Terminals OK : Go to next step. 8. INSPECT AIR INJECTION CONTROL DRIVER (AIR INJECTION CONTROL DRIVER POWER SOURCE CIRCUIT) (See INSPECTION PROCEDURE ) NG : REPAIR OR REPLACE AIR INJECTION CONTROL DRIVER POWER SOURCE OK : Go to next step. 9. CHECK HARNESS AND CONNECTOR (ECM - AIR INJECTION CONTROL DRIVER) a. Disconnect the D74 ECM connector. b. Disconnect the D51 or D55 AID connector. c. Measure the resistance according to the value (s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION NG : REPAIR OR REPLACE HARNESS OR CONNECTOR Tester Connection Condition Specified Condition D74-54 (AIRP) - D55-4 (SIP) Always Below 1 ohms D74-53 (ARP2) - D51-4 (SIP2) Always Below 1 ohms
2008 Toyota Tundra 2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra
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