Possible causes
– Weak battery
– Faulty Transmission Control Module (TCM)
– Harness is open or shorted between (TCM) and Engine Control Module (ECM)
– Poor circuit electrical connection between (TCM) and (ECM)
– Faulty Transmission Control Module (TCM)
– Harness is open or shorted between (TCM) and Engine Control Module (ECM)
– Poor circuit electrical connection between (TCM) and (ECM)
Tech description
There is a service bulletin for the 2001 Infiniti I30.
2001 Infiniti I30 Factory Service Bulletin OBDII Code P1605
When is the obd code mean?
Malfunction is detected when an incorrect signal from Transmission control module (TCM) is sent to Engine Control Module (ECM).
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1605 INFINITI OBD Code Description
The malfunction information related to Automatic Transmission is transferred through the line circuit from Transmission control module (TCM) to Engine Control Module (ECM).
INFINITI Related P1605 code
2001 INFINITI I30 Power Train:automatic Transmission:control Module (tcm, Pcm)