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STANDARD VOLTAGE SPECIFICATION Fig. 100: Identifying Opening Relay (C/OPN) NG : Go to step 14 OK : Go To Next Step 8. CHECK HARNESS AND CONNECTOR (CIRCUIT OPENING RELAY (C/OPN) - ECM, FUEL PUMP ECU) a. Remove the circuit opening relay (C/OPN) from the engine room relay block. b. Disconnect the A24 ECM connector. c. Disconnect the R7 fuel pump ECU connector. d. Measure the resistance according to the value (s) in the table below. Standard resistance STANDARD RESISTANCE SPECIFICATION Tester Connection Switch Condition Specified Condition C/OPN relay (2) - Body ground Ignition switch ON 11 to 14 V C/OPN relay (5) - Body ground Ignition switch ON 11 to 14 V Tester Connection Condition Specified Condition C/OPN relay (1) - A24-48 (FC) Always Below 1 ohms C/OPN relay (3) - R7-4 (+B) Always Below 1 ohms C/OPN relay (1) or A24-48 (FC) - Body ground Always 10 kohms or higher C/OPN relay (3) or R7-4 (+B) - Body ground Always 10 kohms or higher
2008 Toyota Tundra 2008 ENGINE PERFORMANCE Engine Control System (2UZ-FE) - Tundra
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