P27E9

Transmission Range Control B Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Incorrect gear shifting
Transmission transition to emergency mode
Check Engine light comes on
Problems starting the engine
Incorrect display of gear selector position on the instrument panel

Causes

Open or short circuit in transmission range control circuit B
Gear selector position sensor malfunction
Damage to connectors or corrosion of contacts
Transmission Control Module (TCM) Problems
Poor circuit grounding

How to Fix

Check continuity of transmission range control circuit B
Inspect connectors and contacts for damage and corrosion
Check the functionality of the gear selector position sensor
Test the Transmission Control Module (TCM)
Check circuit grounding

Related codes

P27E8 P27EA P27EB