TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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TGE/Troubleshooting 2JZ-GE — Circuit Description (Cont'd), page 74

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Circuit Description (Cont'd) — MK4 Supra Troubleshooting 2JZ-GE, page 74
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Page text (OCR transcript)
EG–454

ENGINE – 2JZ–GE ENGINE TROUBLESHOOTING

CIRCUIT DESCRIPTION (Cont'd)

Malfunction: Open in EGR Gas Temp. Sensor Circuit

(Vehicle Speed)

88 ~ 96 km/h
(55 ~ 60 mph)

Detection

④

Idling
IG SW OFF

① ②
③

3 min.
4 min.
(Time)

FI6528

(1) Disconnect the EFI No.1 fuse (30A) for 10 sec. or more, with IG switch OFF. Initiate
test mode (Connect terminal TE2 and E1 of data link connector 2 with IG switch
OFF).
(2) Start engine and warm up.
(3) Idle the engine for 3 min.
(4) With the A/C ON and transmission in 5th position (A/T in 3rd speed) drive at 88 ~ 96
km/h (55 ~ 60 mph) for 4 min. or less.

HINT: If a malfunction exists, the malfunction indicator lamp will light up during step (4).

NOTICE: If the conditions in this test are not strictly followed, detection of the malfunction
will not be possible.

WIRING DIAGRAM

Engine Control Module

B-R
3
>>EA3 B-R 2 1 P
GR
8
>>EA1
VSV for EGR
75 EGR
E9
E01

R/B No.2

EFI Main Relay

B+ 

24
GR E10 M-REL

R/B No.2

EFI No.1

B-Y

W-B

2A

EGR Gas
Temp. Sensor

5 V

1
BR-Y
46
E9 THG

2

Battery

BR-B
66
E9 E2

E1

FI6949