DESCRIPTION The main body ECU (multiplex network body ECU) sends signals to the tire pressure warning ECU and receiver via a direct line.
WIRING DIAGRAM ![]() CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(a) Disconnect the P21 tire pressure warning ECU and receiver connector. (b) Disconnect the J165 main body ECU (multiplex network body ECU) connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Replace the tire pressure warning ECU and receiver. Click here
(a) Clear the DTCs. Click here (b) Turn the ignition switch off. (c) Turn the ignition switch to ON. (d) Check for DTCs. Click here
OK: DTC C2179/79 is not output.
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Toyota Tundra Service Manual > Audio And Visual System: Terminals Of Ecu
TERMINALS OF ECU 1. RADIO AND DISPLAY RECEIVER ASSEMBLY Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition J137-1 (FR+) - J137-7 (GND1) LA-LG - BR Sound signal (Front right) Audio system playing A waveform synchronized with sound is output J137-2 (FL+) - J137-7 (GN ...