Toyota 1KZ-TE Repair Manual page 153

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Back Up P o wer S ource Ci rcui t
CIRCUIT DESCRIPTION
Battery positive voltage is applied to terminal +BF of the engine ECU even when the ignition switch is OFF
for the use of the DTC memory, air--fuel ratio adaptive control value memory and etc.
WIRING DIAGRAM
Hilux
W
Battery
4Runner
W
Battery
1KZ- -TE ENGINE SUP (RM790E)
DIAGNOSTICS
Engine Room R/B
ECD
2 2
2
1
Engine Room R/B
ECD
2 2
2
1
- - ENGINE
19
Y
IJ4
2
L--R
IG1
1KZ-TE PAGES FROM SUPPLEMENT
BACK TO MODEL INDEX
Engine ECU
1
+BF
Y
E7
Engine ECU
1
+BF
L--R
E18
CONTINUED
DI- -89
DI8FQ- -01
A10948
A10948