TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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BAT/Brakes, ABS & TRAC Systems60 / 167
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w/ TRAC: — MK4 Supra Brakes, ABS & TRAC Systems, page 60
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BR–60 BRAKE SYSTEM – ANTI–LOCK BRAKE SYSTEM (ABS) w/ TRAC: A20 A21 A22 13 12 11 10 9 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 6 5 4 3 2 1 26 25 24 23 22 21 20 19 18 17 16 15 14 16 15 14 13 12 11 10 9 12 11 10 9 8 7 RD669B Symbols (Terminals No.) STD Voltage (V) Condition BAT (A20–7) – GND (A20–25) 10 –14 Always IG 1 (A20–24) – GND (A20–25) 10 –14 IG switch ON SR (A20–15) – R– (A20–12) 8.3 –14 IG switch ON, ABS warning light OFF MR (A20–2) – R– (A20–12) Below 1.0 IG switch ON TSR (A20–1) – R– (A20–12) 8.3 –14 IG switch ON, TRAC and TRAC OFF indicator light OFF TMR (A20–14) – R– (A20–12) Below 1.0 IG switch ON SFR (A22–1) – GND (A22–9) 10 –14 IG switch ON, ABS warning light OFF SFL (A20–13) – GND (A20–25) 10 –14 IG switch ON, ABS warning light OFF SRR (A20–26) – GND (A20–25) 10 –14 IG switch ON, ABS warning light OFF SRL (A22–7) – GND (A22–9) 10 –14 IG switch ON, ABS warning light OFF AST (A20–21) – GND (A20–25) 10 –14 IG switch ON, ABS warning light OFF SMC (A22–2) – GND (A22–9) 10 –14 IG switch ON, TRAC and TRAC OFF indicator light OFF SRC (A22–8) – GND (A22–9) 10 –14 IG switch ON, TRAC and TRAC OFF indicator light OFF WA (A22–5) – GND (A22–4) Below 2.0 IG switch ON, ABS warning light ON 10 –14 IG switch ON, ABS warning light OFF PKB (A22–12) – GND (A22–4) Below 1.5 IG switch ON, PKB switch ON Fluid in M/C reservoir above MIN level. 10 –14 IG switch ON, PKB switch OFF Fluid in M/C reservoir above MIN level. LBL (A20–10) – GND (A20–25) 10 –14 IG switch ON Fluid in M/C reservoir above MIN level. STP (A22–6) – GND (A22–4) Below 1.5 Stop light switch OFF 8 –14 Stop light switch ON D/G (A22–10) – GND (A22–9) 10 –14 IG switch ON, ABS warning light OFF