1997 TOYOTA SUPRA Service Repair Manual

Page 713 of 1807

TOYOTA SUPRA 1997  Service Repair Manual BE6653S03256S03257A06732
ON
Air
Air
FE
FE
VSV: ON
VSV: OFF
DI-298
- DIAGNOSTICSENGINE (2JZ-GTE)
526 Author: Date:
1997 SUPRA   (RM502U)
INSPECTION PROCEDURE
TOYOTA hand-held tester
1 Connect the TOY

Page 714 of 1807

TOYOTA SUPRA 1997  Service Repair Manual BE6653S03239
A03154
ON
Check Harness A
ECM
B38
VSV3 (+)
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-299
527 Author: Date:
1997 SUPRA   (RM502U)
3 Check for open and short in harness and connector between EFI m

Page 715 of 1807

TOYOTA SUPRA 1997  Service Repair Manual DI-300
- DIAGNOSTICSENGINE (2JZ-GTE)
528 Author: Date:
1997 SUPRA   (RM502U)
DTC P1780 Park/Neutral Position Switch Malfunction
CIRCUIT DESCRIPTION
The park/neutral position switch goes on when the

Page 716 of 1807

TOYOTA SUPRA 1997  Service Repair Manual S05425
Battery 1
B
2A
AM232
MAIN
5
1
Starter Relay
2 2 2 2
W-R
4IB1
W-R
Ignition Switch 78
B-W
J/B No.1 64
ST
1J1KBB13
IJ2B-WB(for MT)
1
2Clutch
Start
Switch
B-W
2
IJ1
BBB B B
B
R/B No.2
L-O810 254
W-

Page 717 of 1807

TOYOTA SUPRA 1997  Service Repair Manual DI-302
- DIAGNOSTICSENGINE (2JZ-GTE)
530 Author: Date:
1997 SUPRA   (RM502U)
INSPECTION PROCEDURE
HINT:
This diagnostic chart is based on the premise that the engine is cranked normally. If the engi

Page 718 of 1807

TOYOTA SUPRA 1997  Service Repair Manual S04081BE6653A03406
START
Check Harness A
ECM
B77
STA(+)
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-303
531 Author: Date:
1997 SUPRA   (RM502U)
OBDII scan tool (excluding TOYOTA  hand-held  tester)
1 Check vol

Page 719 of 1807

TOYOTA SUPRA 1997  Service Repair Manual S03470
Battery
B
12A
AM2
EFI No.1R/B
No.2 22
W-R
4
IB1W-R7
6
Ignition
Switch
B-W
W-B
B-W
2
2
2 2
EB
EFI Main Relay5
1 3
2 3
1J1E8
IGN
J/B No.1B-O13
II1B-O1
31
24
69A
A
A
B
BR B-Y B-RB-R
GR
EA2
EA1
R/B

Page 720 of 1807

TOYOTA SUPRA 1997  Service Repair Manual A00729
ON
Check Harness A
ECM
A31
+B
B69
E1(-)
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-305
533 Author: Date:
1997 SUPRA   (RM502U)
INSPECTION PROCEDURE
1 Check voltage between terminals +B and E1 of ECM co