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Skoda Fabia 1.2 2006 - Error 1309: Power Steering, Electro-Hydraulic, Communication Issue

grzegorzlbn 8940 13
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  • #1 16992709
    grzegorzlbn
    Level 10  
    Posts: 46
    Rate: 35
    Board Language: polish
    Hello, I have a problem in the skoda factory with power steering error1309 Electro-hydraulic steering system, no communication, I have already changed the pump to the second one and the steering sensor without results, I checked the voltage on the ankles, constant plus from the battery and 12v after the ignition switch in the second, everything looks ok, any ideas where to look?
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  • #2 16992745
    qs300
    Level 33  
    Posts: 2088
    Help: 242
    Rate: 361
    Board Language: polish
    Did you clear the error after replacing the pump and sensor?
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    #3 16992814
    sk700
    Level 31  
    Posts: 1347
    Help: 173
    Rate: 414
    Board Language: polish
    Check the tension on the wall in the pump cube, look at the condition of the wires on the left stringer.
  • #4 16992827
    grzegorzlbn
    Level 10  
    Posts: 46
    Rate: 35
    Board Language: polish
    I tried to delete the error but it is permanent
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  • #5 16996846
    złowrogi_boncur
    Level 27  
    Posts: 972
    Help: 84
    Rate: 419
    Board Language: polish
    It is possible that the beam is damaged next to the pit, or is the pump going to be controlled by the computer?
  • #6 16997988
    grzegorzlbn
    Level 10  
    Posts: 46
    Rate: 35
    Board Language: polish
    I can not connect to the pump, on the wall 2.6 volts on both pins between them 0.25
  • #7 16998009
    CAR pass
    Level 20  
    Posts: 657
    Help: 41
    Rate: 238
    Board Language: polish
    then you have the answer.
    Look for CAN orange with stripes :)
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  • #8 16998220
    grzegorzlbn
    Level 10  
    Posts: 46
    Rate: 35
    Board Language: polish
    Could you explain what's wrong with you?
  • #9 16998226
    CAR pass
    Level 20  
    Posts: 657
    Help: 41
    Rate: 238
    Board Language: polish
    It's for both of what ?? 2.6 V each
  • #10 16998241
    jenusz11
    Level 20  
    Posts: 330
    Help: 33
    Rate: 195
    Board Language: polish
    a rotten bunch on the bank
  • #11 16998261
    radiogaga
    Service technician RTV  
    Posts: 3116
    Help: 398
    Rate: 434
    Board Language: polish
    1309 is a damage to the pump driver. How do you have such an error not being able to connect to the pump? You did not specify the type of pump Koyo or TRW? You connected via indicators?
  • #12 16998359
    grzegorzlbn
    Level 10  
    Posts: 46
    Rate: 35
    Board Language: polish
    Unable to connect to the pump, I entered the can gataway, I found this error, the pump lasts on the first basket from the canu there are 3 pins 2 from the canu and plus the ignition switch
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    #13 16999789
    radiogaga
    Service technician RTV  
    Posts: 3116
    Help: 398
    Rate: 434
    Board Language: polish
    Check the power supply by loading the main plug with two halogens. These pumps often break down, e.g. by water leakage through the plugs. Are you sure that the other one is working?
  • #14 17001433
    grzegorzlbn
    Level 10  
    Posts: 46
    Rate: 35
    Board Language: polish
    Already everything turned out, it turned out that the 50amp fuse was blown, I was fooled by the meter that showed 12v only came out on the light bulb as you advised, thank you for your help
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Topic summary

✨ The discussion revolves around a communication issue with the electro-hydraulic power steering system in a 2006 Skoda Fabia, indicated by error code 1309. The user has replaced the pump and steering sensor but continues to face the same error, which remains permanent despite attempts to clear it. Various suggestions are made, including checking the wiring and voltage at the pump, inspecting the CAN bus connections, and verifying the power supply. Ultimately, the user discovers that a blown 50-amp fuse was the root cause of the problem, which was misleadingly indicated by a multimeter reading 12V only under load conditions.
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FAQ

TL;DR: Skoda Fabia 1.2 error 1309 commonly stems from lost pump power (a 50 A fuse) or CAN communication loss; “50amp fuse was blown.” [Elektroda, grzegorzlbn, post #17001433]

Why it matters: This FAQ helps DIYers quickly restore steering assist by checking the real power supply and CAN wiring first.

Quick Facts

What does Skoda Fabia error 1309 mean?

Code 1309 flags the electro‑hydraulic power steering system. Forum diagnostics tie it to a failed pump driver or a communication issue that prevents module access. Confirm power and network first, then evaluate the pump’s internal controller if comms return but assistance stays off. [Elektroda, radiogaga, post #16998261]

Where should I start if I can’t connect to the power‑steering pump?

Start at the pump connector: verify battery feed and ignition‑switched 12 V under load, then check CAN High/Low continuity to the gateway. A user reported no comms alongside abnormal line readings, which pointed away from the pump itself. [Elektroda, grzegorzlbn, post #16997988]

How do I load‑test the pump power supply with halogen bulbs?

“Check the power supply by loading the main plug with two halogens.” 1) Unplug the pump and connect two 12 V halogen bulbs across the feed and ground. 2) Switch ignition on and observe brightness/voltage drop. 3) If dim or dead, trace fuses, relays, and connectors for heat or corrosion. [Elektroda, radiogaga, post #16999789]

Which fuse feeds the electro‑hydraulic power steering pump?

Owners report an approximately 50 A main fuse in the supply path. When it blows, a multimeter may still show 12 V with no usable current. Replacing the fuse restored communication and assist in the referenced case. [Elektroda, grzegorzlbn, post #17001433]

What should CAN voltages look like at the pump connector?

At rest, CAN High and CAN Low sit near the midpoint, about 2.5–2.6 V each. Seeing ~2.6 V on both pins during a fault was highlighted and used as a diagnostic clue toward wiring/bus issues rather than sensor failure. [Elektroda, CAR pass, post #16998226]

My meter shows 12 V but the pump still won’t talk. Why?

Voltage without load can mislead. A blown high‑amp fuse or high‑resistance joint may pass tiny current, fooling the meter. Under load, the voltage collapses and communication fails. Load‑test the feed and replace the failed fuse or connector. [Elektroda, grzegorzlbn, post #17001433]

Where do wiring faults commonly occur on the Fabia 1.2?

Inspect the harness along the left frame rail (left stringer). Look for crushed sections, chafed insulation, and green corrosion near the pump connector. Physical damage here can drop power or disrupt CAN. Repair and reseal as needed. [Elektroda, sk700, post #16992814]

Is the harness near the pit/underbody a known failure point?

Yes. The beam/harness area next to the pit can suffer mechanical or moisture damage, affecting the pump’s supply or control. If load testing fails, open the loom here and check for broken or water‑wicked conductors. [Elektroda, złowrogi_boncur, post #16996846]

Do I need to clear the fault code after replacing parts?

Yes. Clear stored faults after each repair to verify what returns. One responder asked this explicitly, because uncleared historical faults can mislead your next test drive and scan. [Elektroda, qs300, post #16992745]

Koyo vs TRW pump—does it change diagnosis?

Identification matters for parts and wiring details, but the first diagnostic steps stay the same: verify power under load and confirm CAN communication. A tech asked the pump type while emphasizing connection method. [Elektroda, radiogaga, post #16998261]

What is the CAN bus in this steering system?

The CAN bus is the two‑wire network that links the pump with the gateway and other modules. It’s typically the orange pair with stripes; damage or shorts here will block communication and trigger error 1309 symptoms. [Elektroda, CAR pass, post #16998009]

Could the pump ECU be bad even if power is present?

Yes. After confirming solid power and healthy CAN, a persistent 1309 can indicate a failed internal driver in the pump assembly. Water ingress through connectors is a known failure cause for these units. [Elektroda, radiogaga, post #16998261]
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