P07D1

Transmission Mode Switch E Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine light comes on
The gearbox goes into emergency mode
Transmission modes do not switch
Reduced vehicle dynamics

Causes

Open or short circuit in the circuit
Oxidation of switch contacts
Mode switch malfunction
Problems with the transmission control unit
Wiring harness damage

How to Fix

Check wiring integrity
Clean switch contacts
Test the switch with a multimeter
Replace switch if necessary
Check connections to the control unit

Related codes

P07D0 P07D2 P07D3