Possible causes
– Faulty Transmission Control Module (TCM)
– Transmission Control Module (TCM) harness is open or shorted
– Transmission Control Module (TCM) circuit poor electrical connection
– Transmission Control Module (TCM) harness is open or shorted
– Transmission Control Module (TCM) circuit poor electrical connection
Tech description
There is a service bulletin for a various Nissan Models with the RE5R05A transmission.
Factory Nissan Service Bulletin OBDII Code P1703
Factory Nissan Service Bulletin OBDII Code P1703
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1703 NISSAN OBD Code Description
The Transmission Control Module (TCM) consists of a microcomputer and connectors for signal input and output and for power supply. The TCM controls the A/T.