1997 TOYOTA SUPRA Service Repair Manual

Page 585 of 1807

TOYOTA SUPRA 1997  Service Repair Manual DI4SM-01
A00152
B+
Power Transistor
Thermistor
Platinum Hot Wire
Output
Voltage
B A
ThermistorPlatinum Hot
Wire
DI-170
- DIAGNOSTICSENGINE (2JZ-GTE)
398 Author: Date:
1997 SUPRA   (RM502U)
CIRCUIT I

Page 586 of 1807

TOYOTA SUPRA 1997  Service Repair Manual FI6930
B-W
R/B No.22
2A
EFI No.1 B
BatteryEFI Main RelayB-R R/B No.2
B-Y
W-B
EBEA2
2
22
2 23
5
1
EA1
8
5
1
Mass Air Flow Meter2
5Y-R
B-RA
B
B 66
28
E2G
E1 VG GR24
M-RELB+ ECM
1
- DIAGNOSTICSENGINE (2J

Page 587 of 1807

TOYOTA SUPRA 1997  Service Repair Manual BE6653
P24310A00099
ON
1(+)
A00689
STARTCheck Harness A
ECM
B66 VG(+)
DI-172
- DIAGNOSTICSENGINE (2JZ-GTE)
400 Author: Date:
1997 SUPRA   (RM502U)
2 Check voltage of mass air flow meter power source

Page 588 of 1807

TOYOTA SUPRA 1997  Service Repair Manual S00344
Check Harness A
ECM
B28 E2G
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-173
401 Author: Date:
1997 SUPRA   (RM502U)
4 Check for open and short in harness and connector between mass air flow meter
and EC

Page 589 of 1807

TOYOTA SUPRA 1997  Service Repair Manual DI-174
- DIAGNOSTICSENGINE (2JZ-GTE)
402 Author: Date:
1997 SUPRA   (RM502U)
DTC P0101 Mass Air Flow Circuit Range / Performance
Problem
CIRCUIT DESCRIPTION
Refer to ºMass Air Flow Circuit Malfunct

Page 590 of 1807

TOYOTA SUPRA 1997  Service Repair Manual FI4741
Acceptable
Resistance kW
-20 0
20 40 60 80 100
(-4) (32) (68)(104)(140)(176)(212)
Temperature °C (°F) 0.1 0.20.3 0.51 2 35 10 2030
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-175
403 Author: Date:
199

Page 591 of 1807

TOYOTA SUPRA 1997  Service Repair Manual FI6448
Intake Air Temp. Sensor
(Inside the mass air flow meter)
3
4P-L
W-B45
65B
BECM
5V
THAR
E2
E2
DI-176
- DIAGNOSTICSENGINE (2JZ-GTE)
404 Author: Date:
1997 SUPRA   (RM502U)
WIRING DIAGRAM
INSPEC

Page 592 of 1807

TOYOTA SUPRA 1997  Service Repair Manual BE6653
A00347
A00348
ON
Intake Air
Temp. Sensor
3
4ECM
5V
THA
E2 B
B 45
65
A00690
ON
Intake Air
Temp. Sensor3
445
65
B
B
ECM
5V
THA
E2
Check Harnss A
B45, 65
THA
E2
ECM
- DIAGNOSTICSENGINE (2JZ-GTE)
D