P0929moderate severityPowertrain
Gear Shift Lock Solenoid Control Circuit Low
on 1999 Toyota Tacoma 2.7L I4 · RWD
What this code means
The gear shift lock solenoid control circuit voltage is reading lower than expected. This usually points to a short to ground or an open in the circuit.
Symptoms
- Shifter stuck in park
- Shift lock inoperative
- Transmission warning light on
Common causes
- Short to ground in wiring
- Faulty shift lock solenoid
- Corroded connector
- Failed TCM driver circuit
Diagnostic steps
- Retrieve stored codes
- Inspect wiring for shorts to ground
- Check solenoid resistance
- Backprobe circuit voltage during operation
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Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0005
Fuel Shutoff Valve A Control Circuit/Open
P0005
Fuel Shutoff Valve A Control Circuit/Open