P071A
Transmission Mode Switch A Circuit
P071A is an OBD-II diagnostic trouble code meaning: Transmission Mode Switch A Circuit. Common causes: malfunction of the automatic transmission mode switch, open or short circuit in switch circuit. Estimated repair cost: $17–67.
Symptoms
- Unstable gear shifting
- Check Engine Light Illuminates
- The gearbox goes into emergency mode
- Inability to switch between modes
- Incorrect display of the selected mode on the instrument panel
Causes
- Malfunction of the automatic transmission mode switch
- Open or short circuit in switch circuit
- Oxidation of switch contacts
- Problems with the transmission control module
- Wiring harness damage
How to Fix
- Check the status of the mode switch
- Diagnose the switch circuit for open/short circuit
- Clean contacts from oxidation
- Check connectors and wiring harness
- If necessary, replace the mode switch
Related codes
Error P071A by Vehicle Brand
FAQ
What does the P071A code mean?
P071A is an OBD-II diagnostic trouble code that indicates: Transmission Mode Switch A Circuit
What causes a P071A error code?
The most common causes of P071A include: Malfunction of the automatic transmission mode switch; Open or short circuit in switch circuit; Oxidation of switch contacts; Problems with the transmission control module.
How do I fix a P071A diagnostic trouble code?
To fix P071A: Check the status of the mode switch. Diagnose the switch circuit for open/short circuit. Clean contacts from oxidation. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P071A?
Yes, but get it checked soon
How much does it cost to fix P071A?
The estimated repair cost for P071A is $17–67. Actual cost depends on your vehicle, location, and labor rates.
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