Model 4700 Maintenance Manual
Section 6. Messages and Codes Fault Codes
Refer to the “Pinout Matrix” located in Theory of Operation section for all voltage and resistance values and component interconnection. Code
Description
Notes/Corrective Action
92
Code 92: Communication Error Detected By The VM The VM has not received information from the PPA, TPA, or Armrest Board.
Check power to TPA, PPA, and Armrest Board. Check power cable connections to the TPA, PPA, and motors for continuity and correct torque. Check motor encoders, temperature sensors, and connections. Check communication wires between VM, TPA, PPA, and Armrest Board for continuity and shorts to frame. Check PPA for correct configuration jumper application. Refer to “Electrical Jumpers” on page 7-49. If OK, replace the VM.
93
Code 93: Communication Error Detected By The VM The VM has not received information from the Operator Display.
Check power to TPA, PPA, VM, HCB, and Operator Display. Check communication wires between VM and Display for continuity and shorts to frame. If OK, replace the Operator Display.
94
Code 94: Internal Fault The VM has detected an internal fault.
Replace the VM.
96
Code 96: VM Internal Fault Fault in the area of memory where the adjustable parameters are stored.
Verify battery voltage. If wrong voltage, set correct voltage via FlashWare (and re-Learn pots) or install correct voltage battery. Check for shorts to frame. If code does not clear by cycling Key switch, replace the VM. If code clears, the adjustable parameters have been reset to default values and require resetting to customer’s requirements via FlashWare. Re-Learn all pots.
97
Code 97: Jumper Configuration Error The jumper between JBP-1 and 2 on the PPA (determines motor size) was detected in the wrong position for the truck model. If not in place, the VM defaults to model 470-C30.
Verify the jumper is in place on models 470-C40 and 470-C50HM. The jumper should not be installed on model 470-C30. Verify correct PPA is installed.
A1
Code A1: Hydraulic Control Board Internal Fault Fault in the area of memory where the adjustable parameters are stored on the Hydraulic Control Board.
If code does not clear by cycling key, replace the Hydraulic Control Board. If code clears, the adjustable parameters have been reset to default values and require resetting to customer’s requirements via FlashWare.
A2
Code A2: Solenoid Valve Error A short was detected in the circuits between the 5th Solenoid Valve (EV11) and the Hydraulic Control Board.
Measure voltage and resistance across coil. If OK, replace the Hydraulic Control Board.
Publication 1160093, Issued: 20 May 2013
6-23
