A/T Gear Position Switch Open
What it means
This is a Honda- and Acura-specific code; the same number can mean something different on other makes. The computer receives no position signal at all from the transmission gear position switch while driving, as if the circuit were disconnected. The cause is usually an unplugged connector, a broken wire, or a failed or misadjusted switch.
Models covered: Honda and Acura models with automatic transmission, mainly 1990s–2000s.
Symptoms4
- Check engine light on, and the D indicator may blink on many models.
- No gear position shown on the dash.
- Abnormal shifting or the transmission holding one gear.
- Sometimes no crank in P or N.
Possible causes5
- Unplugged or loose switch connector.
- Broken wire between the switch and the computer.
- Internal failure of the gear position switch.
- Misadjusted switch or cable leaving the lever between positions.
- Connector corrosion from water.
How to diagnose4
- Watch position inputs on a scan tool while moving the lever and note where the signal disappears.
- Inspect the connector and its latch for looseness or corrosion.
- Check wiring continuity between the switch and the computer.
- Check switch and cable adjustment per the manufacturer procedure.
How to fix5
- Reconnect or clean the connector.
- Repair the broken wire.
- Adjust the switch or cable.
- Replace the gear position switch if it is proven faulty.
- Clear the code and confirm every position reads correctly.
Repair cost
In Saudi riyals; the highlighted part is the expected range for this fault.
The cost is low for a connector or adjustment, and higher when the switch must be replaced.
Prices are rough estimates for common cars at independent workshops and vary with the car and the source of the part.
Prices last updated: September 2026
Frequently asked questions
Can P1706 stop the car from starting?
It can, because the same switch allows cranking only in P and N; if its signal is lost the starter may not engage.
Is a new switch always the fix?
No. A loose connector or a misadjusted switch is common, so check both before buying the part.
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This guide is for information only and does not replace an inspection by a qualified technician. If the fault involves brakes, steering, engine temperature, electrics or refrigerant, do not attempt the repair yourself.
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