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10. CHECK COMBINATION METER ECU Fig. 23: Identifying J28 ECU Connector Terminals a. Disconnect the J28 ECU connector. b. Measure the resistance according to the value(s) in the table below. CONNECTOR TERMINAL WIRING COLOR REFERENCE Terminal No. (Symbols) Wiring Color Switch Condition Specified Condition J46-13 (CANH) - J46-22 (CANL) BR - W Ignition switch OFF 54 to 69 ohms J46-13 (CANH) - J46-25 (E1) BR - W-B Ignition switch OFF 200 ohms or higher J46-22 (CANL) - J46-25 (E1) W - W-B Ignition switch OFF 200 ohms or higher J46-13 (CANH) - J17-16 (BAT) BR - P Ignition switch OFF 6 kohms or higher J46-22 (CANL) - J17-16 (BAT) W - P Ignition switch OFF 6 kohms or higher Terminal No. (Symbols) Wiring Color Switch Condition Specified Condition J28-33 (CANH) - J28-34 (CANL)*1 SB - W Ignition switch OFF 108 to 132 ohms J28-33 (CANH) - J28-40 (E1)*1 SB - W-B Ignition switch OFF 200 ohms or higher J28-34 (CANL) - J28-40 (E1)*1 W - W-B Ignition switch OFF 200 ohms or higher J28-33 (CANH) - J28-18 (B)*1 SB - LG Ignition switch OFF 6 kohms or higher J28-34 (CANL) - J28-18 (B)*1 W - LG Ignition switch OFF 6 kohms or higher J28-22 (CANH) - J28-21 (CANL)*2 Y - W Ignition switch OFF 108 to 132 ohms J28-22 (CANH) - J28-40 (E1)*2 Y - W-B Ignition switch OFF 200 ohms or higher J28-21 (CANL) - J28-40 (E1)*2 W - W-B Ignition switch OFF 200 ohms or higher J28-22 (CANH) - J28-18 (B)*2 Y - LG Ignition switch OFF 6 kohms or higher J28-21 (CANL) - J28-18 (B)*2 W - LG Ignition switch OFF 6 kohms or higher HINT: *1: for V bus *2: for MS bus
2009 Toyota Tundra 2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra
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