1995 TOYOTA SUPRA Service Repair Manual

Page 1009 of 2543

TOYOTA SUPRA 1995  Service Repair Manual (See page IN±30).
(See page IN±30).
(See page BR±62).
Remove front fender splash shield.
Disconnect speed sensor connector.
Measure resistance between terminals 1 and 2 of
speed sensor connector.
R

Page 1010 of 2543

TOYOTA SUPRA 1995  Service Repair Manual (See page SA±15).
(See page SA±45).
Remove front speed sensor rotor
(See page SA±15).
Check sensor rotor serrations.
No scratches or missing teeth.
Check the front speed sensor installation.
The in

Page 1011 of 2543

TOYOTA SUPRA 1995  Service Repair Manual DTC 41 IG Power Source Circuit
CIRCUIT DESCRIPTION
This is the power source for the ECU, hence the CPU and the actuators.
 DTC No. Diagnostic Trouble Co

Page 1012 of 2543

TOYOTA SUPRA 1995  Service Repair Manual INSPECTION PROCEDURE
Check battery positive voltage.
Voltage:  10 ± 14 V
Check and repair the charging system.
Remove TRAC ECU with connectors still
connected.
Turn ignition switch ON.
Measure voltag

Page 1013 of 2543

TOYOTA SUPRA 1995  Service Repair Manual (See page IN±30).
Remove ECU±IG fuse from J/B No. 1.
Check continuity of ECU±IG fuse.
Continuity
Check ECU±IG fuse.
Check for short in all the harness and components
connected to ECU±IG fuse.
Che

Page 1014 of 2543

TOYOTA SUPRA 1995  Service Repair Manual DTC 43 ABS & TRAC ECU Malfunction
CIRCUIT DESCRIPTION
 DTC No. Diagnostic Trouble Code Detecting Condition Trouble area


Page 1015 of 2543

TOYOTA SUPRA 1995  Service Repair Manual Check voltage between terminal BRFA of TRAC ECU and body ground.
Remove TRAC ECU with connectors still con-
nected.
Turn ignition switch ON.
Measure voltage between terminal BRFA of TRAC
ECU and body

Page 1016 of 2543

TOYOTA SUPRA 1995  Service Repair Manual DTC 44 NE Signal Circuit
CIRCUIT DESCRIPTION
The TRAC ECU receives engine speed signals (NE signals) from the ECM.
 DTC No. Diagnostic Trouble Code De