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Last Modified: 9-16-2014 6.6 U Doc ID: RM000002X2W02PX Model Year: 2015 Model: Tundra Prod Date Range: [08/2014 - ] Title: ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: TERMINALS OF ECU; 2015 MY Tundra [08/2014 - ] TERMINALS OF ECU 1. CHECK TRANSPONDER KEY AMPLIFIER (a) Disconnect the J20 amplifier connector. (b) Measure the resistance according to the value(s) in the table below. TERMINAL NO. (SYMBOLS) WIRING COLOR TERMINAL DESCRIPTION CONDITION SPECIFIED CONDITION J20-7 (AGND) - Body ground GR - Body ground Ground Always Below 1 Ω If the result is not as specified, there may be a malfunction on the wire harness side. (c) Reconnect the J20 amplifier connector. (d) Measure the resistance and voltage according to the value(s) in the table below. TERMINAL NO. (SYMBOLS) WIRING COLOR TERMINAL DESCRIPTION CONDITION SPECIFIED CONDITION J20-1 (VC5) - J20-7 (AGND) G - GR Power supply No key in ignition key cylinder Below 1 V Key inserted in ignition key cylinder 4.6 to 5.4 V J20-4 (CODE) - J20-7 (AGND) LG - GR Demodulated signal of key code data No key in ignition key cylinder Below 1 V Key inserted in ignition key cylinder Pulse generation (see waveform 1) J20-5 (TXCT) - J20-7 (AGND) L - GR Key code output signal No key in ignition key cylinder Below 1 V Key inserted in ignition key cylinder Pulse generation (see waveform 2) J20-7 (AGND) - Body ground GR - Body ground Ground Always Below 1 Ω If the result is not as specified, the amplifier may have a malfunction. ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: TERMI... |