Re: HELP code P1135
Trouble area
Open or in heater circuit of A/F sensors
(bank 1, 2 sensor 1)
A/F sensors (bank 1, 2 sensor 1) heater
ECM
INSPECTION PROCEDURE
1 Check voltage between terminal HAFR, HAFL of ECM connector and body
ground.
OK - Check and replace ECM
NG - continue
2 Check resistance of A/F sensor heaters (bank 1, 2 sensor 1)
NG - Replace A/F sensors (bank 1, 2 sensor 1).
OK - Check and repair harness or connector between EFI main relay (Marking: EFI) and A/F sensors (bank 1, 2 sensor 1) and ECM
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