P27A0

Four Wheel Drive (4WD) Range Signal Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine Light Is On
Four-wheel drive system malfunction
The car does not switch to 4WD mode
Reduced vehicle dynamics
Errors in the transmission system

Causes

4WD Range Sensor Malfunction
Open or short circuit in the circuit
Wiring Harness Problems
Four-wheel drive control module malfunction
Corrosion of contacts or connectors

How to Fix

Check 4WD Range Sensor
Inspect the chain for damage
Check connectors and contacts
Test the four-wheel drive control module
Replace faulty components

Related codes

P2700 P2701 P2702