Toyota 1RZ Supplement Manual page 112

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DTC
CIRCUIT DESCRIPTION
Refer to NE signal circuit
DTC No.
No NE signal to ECU for 0.3 sec. or more at 1,500 rpm or
13
more
This code indicates that an intermittent problem of the NE signal from the distributor to the ECU has occurred,
but that it has returned to normal. Note that although this problem may not necessarily appear at the time
of inspection, it cannot be ignored because this diagnostic trouble code is output, indicating that there is or
was a malfunction in the NE signal circuit; this "malfunction" is usually a loose connector.
The distributor connector and the NE terminal of the ECU connector must therefore be checked for the fol-
lowing:
(1) Loose connectors
(2) Dirty connector terminals
(3) Loose connector terminals
DIAGNOSTICS
13 NE Signal Circuit
on page DI -- 20.
Detection Item
3RZ-F,3RZ-FE
- - ENGINE (1RZ- -E)
S Open or short in NE circuit
S IIA
S Engine ECU
Pages From Supplement
TO MODEL INDEX
DI- -23
DI1HO- -01
Trouble Area