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Ecu Pin Voltage

ABS/TRAC ECU PIN VOLTAGE SPECIFICATIONS

Measure Between ECM Terminals Conditions Volts
A20-8 & A19-15, A21-9 Or A21-10 Ignition On 10-14
A19-1 & A19-11 Ignition On & ABS Warning Light Off 9-14
A19-1 & A19-24 Ignition On Less Than 1.0
A19-26 & A19-15, A21-9 Or A21-10 Ignition On & ABS Warning Light Off 10-14
A19-13 & A19-15, A21-9 Or A21-10 Ignition On & ABS Warning Light Off 10-14
A21-1 & A19-15, A21-9 Or A21-10 Ignition On & ABS Warning Light Off 10-14
A21-2 & A19-15, A21-9 Or A21-10 Ignition On & ABS Warning Light Off 10-14
A21-7 & A19-15, A21-9 Or A21-10 Ignition On & ABS Warning Light Off 10-14
A21-8 & A19-15, A21-9 Or A21-10 Ignition On & ABS Warning Light Off 10-14
A19-12 & A19-15, A21-9 Or A21-10 Ignition On & ABS Warning Light Off 10-14
A19-25 & A19-15, A21-9 Or A21-10 Ignition On & ABS Warning Light Off 10-14
A19-10 & A19-15, A21-9 Or A21-10 Ignition On & ABS Warning Light Off 10-14
A20-4 & A19-15, A21-9 Or A21-10 Ignition On & ABS Warning Light On Less Than 2.0
A20-4 & A19-15, A21-9 Or A21-10 Ignition On & ABS Warning Light Off 10-14
A20-16 & A19-15, A21-9 Or A21-10 Stop Light Switch Off Less Than 1.5
A20-16 & A19-15, A21-9 Or A21-10 Stop Light Switch On 8-14
A19-22 & A19-15, A21-9 Or A21-10 Ignition On & ABS Warning Light On 10-14
A19-9 & A19-15, A21-9 Or A21-10 Ignition On 8-14
A19-23 & A19-15, A21-9 Or A21-10 Ignition On 8-14
A19-17 & A19-18 Ignition On & Slowly Turning R/F Wheel AC Generation
A19-5 & A19-4 Ignition On & Slowly Turning L/F Wheel AC Generation
A20-9 & A20-10 Ignition On & Slowly Turning R/R Wheel AC Generation
A20-2 & A20-1 Ignition On & Slowly Turning L/R Wheel AC Generation
A19-14 & A19-15, A21-9 Or A21-10 Ignition On Less Than 1.5
A21-5 & A19-15, A21-9 Or A21-10 Ignition On & ABS Warning Light Off 10-14
A21-6 & A19-15, A21-9 Or A21-10 Ignition On & ABS Warning Light Off 10-14
A21-12 & A19-15, A21-9 Or A21-10 Ignition On & ABS Warning Light Off 10-14
A20-15 & A19-15, A21-9 Or A21-10 Engine Idling Pulse Generation
A20-6 & A19-15, A21-9 Or A21-10 Ignition On Pulse Generation
A20-14 & A19-15, A21-9 Or A21-10 Ignition On Pulse Generation
A20-13 & A19-15, A21-9 Or A21-10 TRAC Control Active Pulse Generation
A20-5 & A19-15, A21-9 Or A21-10 TRAC Control Active Pulse Generation
A20-3 & A19-15, A21-9 Or A21-10 Ignition On, SLIP Indicator Light On Less Than 2.0
A20-3 & A19-15, A21-9 Or A21-10 Ignition On, SLIP warning Light Off 10-14
A20-12 & A19-15, A21-9 Or A21-10 Ignition On, TRAC OFF Indicator Light On Less Than 2.0
A20-12 & A19-15, A21-9 Or A21-10 Ignition On, TRAC OFF Indicator Light Off 10-14
A20-11 & A19-15, A21-9 Or A21-10 Ignition On, TRAC Cut Switch Pushed In Less Than 2.0
A20-11 & A19-15, A21-9 Or A21-10 Ignition On, TRAC Cut Switch Released 8-14
Fig 1: Identifying A19, A20 & A21 ABS/TRAC ECU Connector Terminals
G98G12936Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002