DTC B1800/51: Short in Driver Side Squib Circuit; DTC B1801/51: Open in Driver Side Squib Circuit; DTC B1802/51: Short to GND in Driver Side Squib Circuit; DTC B1803/51: Short to B+ in Driver Side Squib Circuit: Wiring Diagram

Fig 1: Identifying Sensor Sub-Assembly And Horn Button Assembly Wiring Diagram

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002