OBD Guide
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P1C04

Output Clutch Linear Solenoid Control Circuit Low

P1C04 is an OBD-II diagnostic trouble code meaning: Output Clutch Linear Solenoid Control Circuit Low. Common causes: linear clutch solenoid malfunction, open or short circuit in control circuit. Estimated repair cost: $17–78.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–78 (est.)

Symptoms

  • Rough gear shifting
  • Delays when shifting gears
  • Dips during acceleration
  • CHECK ENGINE indicator
  • Switching to emergency mode of the gearbox

Causes

  • Linear clutch solenoid malfunction
  • Open or short circuit in control circuit
  • Poor contact in connectors
  • Transmission control unit (TCU) problems
  • Low transmission fluid level

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Diagnose the linear solenoid control circuit for opens and shorts
  3. Check solenoid connectors and contacts
  4. Replace linear clutch solenoid if necessary
  5. Check the operation of the TCU and update the firmware if necessary

Related codes

P1C05P1C06P1C03

FAQ

What does the P1C04 code mean?

P1C04 is an OBD-II diagnostic trouble code that indicates: Output Clutch Linear Solenoid Control Circuit Low

What causes a P1C04 error code?

The most common causes of P1C04 include: Linear clutch solenoid malfunction; Open or short circuit in control circuit; Poor contact in connectors; Transmission control unit (TCU) problems.

How do I fix a P1C04 diagnostic trouble code?

To fix P1C04: Check the level and condition of the transmission fluid. Diagnose the linear solenoid control circuit for opens and shorts. Check solenoid connectors and contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1C04?

Yes, but get it checked soon

How much does it cost to fix P1C04?

The estimated repair cost for P1C04 is $17–78. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat