P099B

Shift Solenoid G Control Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

Incorrect gear shifting
Switching delays
Switching to emergency mode of the gearbox
Check Engine Light on Dashboard
Reduced vehicle dynamics

Causes

Open or short circuit in solenoid circuit
Damaged wiring harness
Faulty solenoid G
Poor contact in the connector
Transmission control module (TCM) problems

How to Fix

Check the integrity of the wiring and connectors
Test solenoid resistance
Check control circuit voltage
Replace faulty solenoid if necessary
Clear errors and take a test drive

Related codes

P099A P099C P099D