Engine-Codes
 
OBDII Code List
 
P1703 2003 INFINITI G35

P1703 2003 INFINITI G35 - Transmission Control Module ROM

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

Possible causes

  • Faulty Transmission Control Module (TCM)
  • Transmission Control Module (TCM) harness is open or shorted
  • Transmission Control Module (TCM) circuit poor electrical connection

Tech notes

There is a factory service bulletin for the 2003–2010 Infiniti vehicles with 5-Speed A/T for the P1703 code. The bulletin recommends replacing the Transmission Valve Body to fix the problem.

2003–2010 Infiniti vehicles with 5-Speed A/T OBDII Code P1703

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1703 2003 Infiniti G35 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.
OBDII Code P1703 2003 Infiniti G35 - Transmission Control Module ROM - Engine-Codes.com

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