B3970

Output Driver Module Performance

Severity

⚠️ Medium

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Incorrect operation of actuators (for example, solenoids, relays)
Idle problems
Deterioration of vehicle dynamics

Causes

Output control module malfunction
Problems with wiring harness or contacts
Short circuit or open circuit in control circuit
Low module supply voltage

How to Fix

Check the module supply voltage
Inspect the wiring harness and contacts for damage
Conduct module diagnostics using a scanner
Replace module if necessary

Related codes

B3971 B3972 P0606