P1703 Infiniti Code - Transmission Control Module ROM
Quick Answer
The P1703 code for Infiniti vehicles indicates a problem with the Transmission Control Module (TCM) ROM. Common causes include Corrupted data in the TCM ROM, Faulty TCM ROM chip, Wiring or connection issues between TCM and ROM chip. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1703 Infiniti indicates Transmission Control Module ROM.
- Common causes
- Common causes include Corrupted data in the TCM ROM, Faulty TCM ROM chip, Wiring or connection issues between TCM and ROM chip.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P1703 Infiniti Description
The P1703 code for Infiniti vehicles indicates a problem with the Transmission Control Module (TCM) ROM. The TCM is a crucial component in the vehicle's transmission system, responsible for controlling the shifting of gears and ensuring the transmission operates smoothly. The ROM (Read-Only Memory) is a type of memory chip that stores the TCM's operating software and calibration data.
Common Causes of P1703 Infiniti
- Corrupted data in the TCM ROM
- Faulty TCM ROM chip
- Wiring or connection issues between TCM and ROM chip
- Malfunctioning TCM
Symptoms of P1703 Infiniti
- Harsh shifting
- Delayed gear engagement
- Erratic shifting patterns
- Transmission going into limp mode
- Transmission slipping
How to Fix P1703 Infiniti
- Diagnose the specific cause of the issue using a diagnostic scanner.
- Inspect the TCM ROM chip and wiring connections for any visible damage or loose connections.
- Perform a TCM reprogramming or update if necessary.
- Replace the TCM ROM chip if it is found to be faulty.
- Clear the code and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1703 Infiniti
The repair costs for addressing a P1703 code on an Infiniti vehicle can vary depending on the exact cause of the issue. On average, the cost of replacing a TCM ROM chip or performing a reprogramming can range from $200 to $500, including parts and labor. However, it is important to note that labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Additional costs may apply if further diagnostics or repairs are needed. It is recommended to consult with a professional mechanic for a more accurate cost estimate based on the specific circumstances of your vehicle.
Tech Notes for P1703 Infiniti
2003–2010 Infiniti RE5R05A Transmission Factory Service Bulletin OBDII Code P1703
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Information for Specific Infiniti Models
- P1703 2003 Infiniti G35 — Transmission Control Module ROM
- P1703 2004 Infiniti G35 — Transmission Control Module ROM
- P1703 2005 Infiniti G35 — Transmission Control Module ROM
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