Toyota DTC P0135 Stove User Manual


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A09084
A09092
ON
HT1A
HT1B
–DIAGNOSTICS ENGINE
DI–57
2000 CELICA (RM744U)
1 Check voltage between terminals HT1, HT2 of ECM connectors and body
ground.
PREPARATION:
(a) Remove the ECM cover.
(b) Remove the 3 bolts from ECM.
(c) Turn the ignition switch ON.
CHECK:
Measure voltage between terminals HT1A, HT1B of ECM con-
nectors and body ground.
HINT:
S Connect terminal HT1A to bank 1 sensor 1.
S Connect terminal HT1B to bank 1 sensor 2.
OK:
Voltage: 9 – 14 V
OK Check and replace ECM (See page IN–30).
NG
2 Check resistance of heated oxygen sensor heater (See page SF–70).
NG Replace heated oxygen sensor.
OK
Check and repair harness or connector between EFI main relay (Marking: EFI), heated oxygen
sensor and ECM (See page IN–30).
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