TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.059

BAT/Brakes, ABS & TRAC Systems — w/ TRAC:, page 60

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p.061
w/ TRAC: — MK4 Supra Brakes, ABS & TRAC Systems, page 60
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Page text (OCR transcript)
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