TSRM/MK4 Supra/Wiring Diagrams
Repair ManualWiring Diagrams
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ABS/ABS and Traction Control13 / 15
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SERVICE HINTS AND PARTS LOCATION — MK4 Supra ABS and Traction Control wiring diagram, page 13
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SERVICE HINTS A20 (A), A21 (B), A22 (C) ABS AND TRACTION ECU (A) 7–GROUND : ALWAYS 10–14 VOLTS (A) 24–GROUND : 10–14 VOLTS WITH IGNITION SW AT ON POSITION (C) 6–GROUND : 10–14 VOLTS WITH STOP LIGHT SW ON (A) 25, (C) 4, (C) 9–GROUND : ALWAYS CONTINUOUS (C) 12–GROUND : 10–14 VOLTS WITH PARKING BRAKE LEVER PULLED UP (PARKING BRAKE SW ON) A 6 (A), A 7 (B) ABS ACTUATOR (A) 1–GROUND : ALWAYS CONTINUOUS (B) 1, (B) 3, (B) 4, (B) 6–GROUND : APPROX. 1.2 (IGNITION SW OFF) (B) 2–GROUND : 4–6 (IGNITION SW OFF) T 3 TRACTION BRAKE ACTUATOR 1–3 : APPROX. 2.1 2–4 : APPROX. 2.1 S11 STOP LIGHT SW 2–1: CLOSED WITH BRAKE PEDAL DEPRESSED A10, A11, A31, A32 ABS SPEED SENSOR FRONT LH, RH, REAR LH, RH 1–2: 0.8– 1.3 k (20˚C, 68˚F) T 9(A), T10(B) TRACTION ECU (A)26–GROUND:10–14 VOLTS WITH IGNITION SW AT ON POSITION (A)13–GROUND: ALWAYS 10–14 VOLTS (A)14–GROUND:ALWAYS BELOW 1 VOLTS (A)18–GROUND:10–14 VOLTS WITH IGNITION SW ON PARKING BRAKE LEVER RELEASED (PARKING BRAKE SW OFF) (A) 3–GROUND: 10–14 VOLTS WITH STOP LIGHT SW ON (A) 5–GROUND: 10–14 VOLTS WITH TRAC OFF SW RELEASED (A)12–GROUND: ALWAYS 10–14 VOLTS P 5 PARKING BRAKE SW 1–GROUND : CLOSED WITH PARKING BRAKE LEVER DEPRESSED S 4 SUB THROTTLE ACTUATOR 2–1, 2–3 : APPROX. 1.1 5–4, 5–6 : APPROX. 1.1 PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE A 6 A 24 (2JZ–GTE) B 2 24 (2JZ–GTE) S 5 25 A 7 B 24 (2JZ–GTE) C10 A 28 S11 29 A10 29 24 (2JZ–GTE) C12 B 28 T 3 25 A11 A 24 (2JZ–GTE) D 1 24 (2JZ–GTE) T 4 25 A20 A 28 D 5 28 T 5 29 A21 B 28 D 6 28 T 8 29 A22 C 28 E 9 B 29 T 9 A 29 A23 28 E10 A 29 T10 B 29 A31 30 P 5 29 A32 30 S 4 25