P0959
Auto Shift Manual Mode Circuit Intermittent
P0959 is an OBD-II diagnostic trouble code meaning: Auto Shift Manual Mode Circuit Intermittent. Common causes: open or short circuit in control circuit, oxidation of switch contacts. Estimated repair cost: $17–89.
Symptoms
- Inability to change gears manually
- Spontaneous gear shifting
- Activation of automatic transmission emergency mode
- Malfunction indicator light comes on
- Loss of power when switching
Causes
- Open or short circuit in control circuit
- Oxidation of switch contacts
- Manual mode switch malfunction
- Wiring Harness Problems
- Malfunction of the automatic transmission control module
How to Fix
- Check the integrity of wiring and contacts
- Clean mode switch contacts
- Check the functionality of the switch
- Scan the automatic transmission module for additional errors
- Replace switch or wiring if necessary
Related codes
Error P0959 by Vehicle Brand
FAQ
What does the P0959 code mean?
P0959 is an OBD-II diagnostic trouble code that indicates: Auto Shift Manual Mode Circuit Intermittent
What causes a P0959 error code?
The most common causes of P0959 include: Open or short circuit in control circuit; Oxidation of switch contacts; Manual mode switch malfunction; Wiring Harness Problems.
How do I fix a P0959 diagnostic trouble code?
To fix P0959: Check the integrity of wiring and contacts. Clean mode switch contacts. Check the functionality of the switch. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0959?
Yes, but get it checked soon
How much does it cost to fix P0959?
The estimated repair cost for P0959 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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