Clark Electrical Forklift Fault Code List

Nov 18

Troubleshooting Clark Forklift Fault Codes with Jaltest MHE

Jaltest diagnostics is the top choice for scanning and troubleshooting Clark Forklift fault codes. It is one of the only multi-brand diagnostic tools on the market which supports MHE brands like Clark, as well as Toyota, Genie, Yale, Komatsu, and much more. Brand support expands with each update to the software, with at least 3 software updates per year.

Why Jaltest MHE?

Jaltest is an advanced diagnostic tool which expands the capabilities of a traditional fault code scanner, allowing you to access real-time machine data, component information, and troubleshooting guides to assist with repairs.

In addition, Jaltest can perform performance tests and essential maintenance tasks such as cylinder cutout tests, actuator tests, system resets, injector coding, and DPF regeneration.

With Jaltest MHE, you can maintain your material handling equipment proactively and reactively. The software enables a preventative maintenance strategy over time, giving you intuitive maintenance recommendations based on historical data.

What Clark Forklifts Are Covered in Jaltest MHE?

In this video, we quickly go through every Clark Forklift model supported in the Jaltest Software in version 23.3.

Keep in mind that Jaltest MHE has had multiple software updates since this video was released, so additional models may now be available in Jaltest MHE version 25.2 onward. Click here for the updated list of Clark Forklifts covered in Jaltest MHE.

How to Retrieve Fault Codes in a Clark Forklift

If your Clark Forklift is experiencing persistent performance issues, you should check for any fault codes that could be signalling a bigger issue.

To retrieve fault codes from your Clark Forklift, you need, at the very least, a basic diagnostic scanner. We recommend Jaltest for its troubleshooting info, guides, and advanced functionalities.

Otherwise, there are cheaper scanners available which will simply retrieve the fault code, but keep in mind that these scanners are not designed to assist with repair work.

Once you retrieve the fault code(s), refer to the list below to find out what the fault code means. To find the fault code description quickly, you can click CTRL+F on your keyboard and type in your fault code to be taken straight to the relevant entry.

The Complete Clark Electrical Forklift Fault Code List

11-1: Ignition coil 1 primary/secondary circuit fault
11-2: Ignition coil 2 primary/secondary circuit fault
11-3: Ignition coil 3 primary/secondary circuit fault
11-4: Ignition coil 4 primary/secondary circuit fault
12-1: Crankshaft position sensor signal loss – engine may stall or fail to start
12-2: Camshaft position sensor signal loss – engine may stall or fail to start
13-1: Engine speed sensor open/short circuit fault
14-1: Knock sensor circuit fault – timing adjustment disabled
21-1: Fuel injector 1 circuit open/short
21-2: Fuel injector 2 circuit open/short
21-3: Fuel injector 3 circuit open/short
21-4: Fuel injector 4 circuit open/short
22-1: Throttle position sensor open/short circuit
22-2: Throttle actuator fault – limited power mode
23-1: Intake air temperature sensor open/short circuit
23-2: Manifold absolute pressure (MAP) sensor open/short circuit
24-1: Mass airflow (MAF) sensor circuit fault
25-1: Oxygen sensor heater circuit fault
25-2: Oxygen sensor signal circuit fault
26-1: Exhaust gas recirculation (EGR) valve circuit fault
31-1: Coolant temperature sensor open/short circuit
31-2: Engine overheat protection triggered
32-1: Transmission oil temperature sensor fault
32-2: Hydraulic oil temperature sensor fault
41-1: Transmission solenoid A open/short circuit
41-2: Transmission solenoid B open/short circuit
42-1: Transmission pressure sensor fault
42-2: Transmission speed sensor fault
43-1: Neutral start switch fault – may prevent starting
44-1: Shift lever position sensor fault
51-1: Lift solenoid open/short circuit
51-2: Tilt solenoid open/short circuit
51-3: Auxiliary hydraulic solenoid fault
52-1: Hydraulic pressure sensor circuit fault
52-2: Hydraulic oil temperature sensor fault
61-1: Battery voltage too low – possible ECU shutdown
61-2: Battery voltage too high – charging system fault
62-1: Alternator fault – charging system not supplying voltage
63-1: ECU power supply circuit fault
64-1: CAN bus communication error – data exchange fault between modules
71-1: Seat switch circuit open/short – travel/handling disabled
72-1: Parking brake switch fault
73-1: Neutral safety switch fault
74-1: Travel direction switch fault (forward/reverse)

Kevin Vieth

Kevin Vieth founded VieTech Training & Consulting Inc. in 2016 out of a passion for empowering heavy-duty and automotive service technicians through technical training. Due to the fast pace of technological advancements, he believes that on-going knowledge and skill development is imperative. With the operational pressures applied to business managers, skills training can be inconvenient, inaccessible and costly. This motivated Kevin to develop the Diesel Engine Technology Fundamentals in-class training curriculum to provide relevant and realistic diesel technology diagnostic training that is on-site, on-time and on-budget.

As a former technical Training Instructor for Cummins Western Canada, Kevin has delivered over 125 Cummins engine certification courses to over 500 heavy-duty technicians. Prior to his time with Cummins, he worked as a journeyman 310S automotive technician and then spent 3 years as a technical lead for Westport Innovations, a world leader in natural gas fuel system development. Kevin’s experience as a service technician, combined with his knowledge of fuel, emissions and engine controls acquired at Westport, helped him excel as a Cummins trainer and in diesel engine fault troubleshooting.

In addition to delivering on-site diesel engine diagnostic training to fleets nation-wide, Kevin also provides on-going remote troubleshooting and technical support to his clients.

https://www.vietech.ca