P07F4 — Transmission Range Control Module Communication Circuit High

What Does P07F4 Mean?

P07F4 is a diagnostic trouble code indicating: Transmission Range Control Module Communication Circuit High. This code relates to the transmission system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P07F4

⚠️ Check Engine Light (MIL) illuminated
⚠️ Transmission Range Control Module Communication reading stuck at maximum value
⚠️ Related system operating erratically or in default mode
⚠️ Harsh or delayed shifting

Common Causes

🔍 Short to voltage in Transmission Range Control Module Communication wiring harness
🔍 Corroded or water-damaged Transmission Range Control Module Communication connector
🔍 Faulty Transmission Range Control Module Communication outputting maximum voltage
🔍 Damaged wiring rubbing against metal components
🔍 ECM/PCM internal fault (rare)

Frequently Asked Questions

What does P07F4 mean?

P07F4 indicates: Transmission Range Control Module Communication Circuit High. The vehicle's computer has detected that the Transmission Range Control Module Communication is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P07F4?

Only short distances if absolutely necessary. P07F4 affects a critical system and should be diagnosed within a few days to avoid further damage.

How much does it cost to fix P07F4?

Repair costs for P07F4 typically range from $20 to $500, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect and repair Transmission Range Control Module Communication wiring for short to voltage
🔧 Clean or replace corroded Transmission Range Control Module Communication connector
🔧 Replace faulty Transmission Range Control Module Communication

1
Find your vehicle above
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2
Check for recalls
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3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P07F4: Transmission Range Control Module Communication Circuit High