Built for reliability, the PTV-BG liftgate keeps you moving. Supported by an expert service network and technical team, your equipment stays in top shape. Featuring corrosion-protected pins, greaseable bushings, thermo-switch motors, and heavy-duty solenoids, it delivers durability and performance you can trust.
Troubleshooting
Keeping your equipment up and on the road is priority number one. When using our troubleshooting guide, assisted by our dedicated technical service team, you can feel confident that your liftgate will be repaired correctly and in a timely manner.
NOTE: Always use a digital voltmeter when checking voltage to determine if you have sufficient power to operate the liftgate.
Step-By-Step
10-10 Test
Before doing 10 -10 test:
- Shut off the truck engine
- Unhook the charge coil from tractor/truck
- Shut off the battery charger
- Disconnect any outside battery source
Confirming battery voltage with 10 -10 test:
- Using a multimeter, set on DC voltage
- Attach the voltmeter negative to the negative post on motor
- Attach the voltmeter positive to the positive post on motor
- Using the lift switch, raise the platform to bed level
- Keeping the switch activated, deadhead the motor
- Keep the switch activated for ten (10) seconds and observe the multimeter reading
- Ten (10) volts for ten (10) seconds is the desired result
- If the reading is less than eight (8) volts, the batteries are low and need to be charged
- Retest after charging
- Replace batteries and check all connections and grounds if you cannot get 10-10
Liftgate Not Working
Do You Hear Solenoids Clicking
- Check the circuit breaker at the batteries
- Go to "Motor Not Running"
Hear No Solenoids Clicking
- Check fuses at pc board
- Check for bad switches
- Check for bad motor solenoid
- EQUALS Bad solenoid valve
Motor Not Running
- Jump across large posts on motor solenoid
- If the motor runs, test for incoming signal on the small terminal and ground on the other small terminal
- Test the thermo switch in the motor for continuity if the signals are good, replace the motor solenoid
- Jump across large posts on motor solenoid
- If the motor does not run, jump the motor directly with jumper cables from a separate good battery
- If the motor is not running, tap on the motor; if the motor runs, the brushes are bad
- If the motor runs, check the motor ground and power to the motor solenoid
Truck: Turn on the cab switch
Trailer: Turn on the switch at the liftgate
- Circuit breaker for motors
- Check the fuse at the master switch
- Unplug J-30 connections on pc board:
- J-30 main control and toggle switch
- Try operations with the hand control remote in the pump box
- If operations are OK, the problem is in the J-30 harness or switches
- M control—check fault codes
- Clear the code: unplug J-11 and J-1 then plug back in
Fault Codes
- #1: Liftgate On
- #0: Liftgate Off
- #2: Low Voltage
- #8: Short
- #9: Defective Motor Solenoid During Lifting
- #A: 15 AMP Damaged Fuse at Master Switch
- #B: Defective Motor Solenoid
- #C: During Operation Error at Motor Solenoid
- #P: Error Diagnostic Mode Active
Liftgate Not Lifting
S-1 valve not opening along with the motor
Liftgate Not Lowering (Gravity Down)
S-5 valve not opening
Liftgate Not Opening Up
S-4 valve not opening along with the motor or check restrictor at the open and close cylinder
Liftgate Not Closing
S-3 not opening along with the motor or check restrictor at the open and close cylinder
Liftgate Not Lowering (Power Down)
S-2 and S-5 valves not opening along with motor
Find Support When You Need It
Need assistance? Our Technical Service Team is here to support you every step of the way. Whether you’re installing a new liftgate, troubleshooting an issue, or performing routine maintenance, we provide expert guidance to keep your equipment operating at peak performance.
You can reach us by phone or email during business hours for immediate assistance.
We’re committed to minimizing downtime and ensuring your liftgate delivers reliable service for years to come.
