logo elektroda
logo elektroda
X
logo elektroda

Toyota Corolla D5Z-H - I am looking for a schematic for Eberspacher HYDRONIC D5Z

DrDiamante 57612 54
Best answers

How do I wire and start the Eberspächer Hydronic D5Z-H heater in a Toyota Corolla E12 D4D, and what is the 8-pin connector pinout?

Wire the heater on the table using pins 1, 2, 3, 5 and 8: 1 = brown thick, ground; 2 = green, +12 V fuel-pump control; 3 = blue, +12 V from the cabin switch; 5 = red/black thick, +12 V through a fuse; 8 = yellow, D+ / engine-running simulation with +12 V [#17657770] Pins 4 (white/blue) and 7 (blue/yellow) are diagnostic lines, and in the Corolla E12 the car controller does not otherwise participate in heater operation [#17657770][#17661945] Another Corolla user measured the factory plug as 1 mass, 2 pump power supply, 3 +12 V after heater switch, 5 +12 V with fuse, and 8 +12 V after starting the engine, which matches the same functional mapping [#16135485] To test startup, first apply the engine-running signal on pin 8, then switch on pin 3; the unit should blow briefly, heat the glow plug, then start the fuel pump and ignition [#17657770] For diagnostics, one user reported partial communication through pin 4 with a VAG KKL cable on L-line, but not with the Corolla/Avensis profile [#16138872]
Generated by the language model.
ADVERTISEMENT
Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 12798691
    DrDiamante
    Level 9  
    Posts: 12
    Help: 1
    Rate: 20
    Hello

    I am asking the honorable forum members for help.
    I need an electrical scheme for the Eberspacher HYDRONIC D5Z-H or at least the main connector of exactly 8 wires: brown 1.5mm2, red 1.5mm2 (I guess that the power supply), black-red 1.5mm2, green 0.5mm2, blue 0.5mm2 , blue-white 0.5mm2, blue-yellow 0.5mm2, yellow 0.5mm2.

    I want to mount the parking heater in my corolla. I have already ordered the furnace and wires supposedly dismounted from the corolla. I am asking for pictures of the engine preheater already installed and its location as well as connection elements (peripheral), electric water pump, fuel pump and wires. I was looking for the net but unfortunately I did not find it.

    The vehicle is: Corolla E12 D4D 1.4 2005.



    Thank you in advance for taking up the topic
  • ADVERTISEMENT
  • Helpful post
    #2 12799151
    deesz
    Level 18  
    Posts: 219
    Help: 25
    Rate: 202
    Sent on PW
  • #3 12852233
    Predseda
    Level 2  
    Posts: 2
    Rate: 10
    deesz, Please send the diagram to Eberspacher HYDRONIC D5Z-H, Toyota Corolla 1.4D-4D, 2004. I am from Slovakia. Thank you very much.
  • #4 12852262
    DrDiamante
    Level 9  
    Posts: 12
    Help: 1
    Rate: 20
    Predseda wrote:
    deesz, Please send the diagram to Eberspacher HYDRONIC D5Z-H, Toyota Corolla 1.4D-4D, 2004. I am from Slovakia. Thank you very much.


    Sent
  • ADVERTISEMENT
  • #5 12852316
    Predseda
    Level 2  
    Posts: 2
    Rate: 10
    Very fast reaction, thank you. :D
  • #6 12872881
    zawodowiecleon81
    Level 2  
    Posts: 2
    Rate: 4
    Colleagues, send it to me if it's not a problem.
  • #7 13052048
    MercMaciek
    Level 2  
    Posts: 2
    Rate: 4
    I also ask for a diagram.
    I also have a problem (stove without plug)
  • #8 13052653
    T.I.R.
    Level 14  
    Posts: 114
    Help: 2
    Rate: 39
    Hello !!!

    I would also like to ask for a scheme for this additional heat.
    tir.fm(_at_)interia.pl

    Best regards, TIR
  • #9 13129561
    Elektroo
    Level 1  
    Posts: 1
    Rate: 5
    Hi, does anyone have manual for this "HYDRONIC D5Z-H" heater? It hit me a second time after 1 month and I will repair a :-( Toyota in the Dealership
  • #10 14183048
    zolti69
    Level 1  
    Posts: 1
    Rate: 4
    Hello.
    I am looking for the Eberspacher HYDRONIC D5Z-H heat pump for the Toyota Corolla 1.4 D4D built in 2006.
    Thanks in advance for your help.
    greetings
  • #11 14183806
    MercMaciek
    Level 2  
    Posts: 2
    Rate: 4
    I think I've mastered it - the stove is on!
    I have a stove with Corolla and in my case it looks like this:

    2.5mm2 red power supply +

    2.5mm2 brown power supply -

    2.5mm2 black / red blower control

    0.5mm2 green Fuel Pump

    0.5mm2 nieb / white

    0.5mm2 yellow start + (with blue)

    0.5mm2 blue start + (with yellow)

    0.5mm2 sky / yellow diagnosis

    For me, sometimes he did not control the fuel pump, but it turned out to be the pomp's fault.
    Greetings!
  • #12 14192340
    tajjson
    Level 1  
    Posts: 1
    Rate: 4
    Hello,
    I am Thomas from Sweden.
    I bought a D5Z-H from Ebay to install in my boat.
    But I have problem finding wiring diagram.
    Do I need to use eberspacher controller or can I just use a switch to start it?
    If anyone has it I would be very happy if You can mail to tajjson(_at_)gmail.com or post more info here.

    Many thanks in advance
    Thomas
  • ADVERTISEMENT
  • #13 14209669
    Pablooqw
    Level 1  
    Posts: 1
    hello, I would also ask for a schema for this additional heat
    pawelwalczak17(_at_)interia.pl
  • ADVERTISEMENT
  • #14 15315678
    zwolmar
    Level 16  
    Posts: 144
    Help: 15
    Rate: 33
    I join and ask for a diagram
    Thank you in advance.
    Or maybe someone will be public?
  • #15 15538351
    kronos_3
    Level 1  
    Posts: 1
    Rate: 14
    Gentlemen, I have hydronic heating D5Z-h, say if you have a Toyota computer, can I read the error codes of this heating on the table?
    And for the scheme, I would also be very grateful
  • #16 15695979
    DrDiamante
    Level 9  
    Posts: 12
    Help: 1
    Rate: 20
    Thank you for your help
  • #17 15789775
    ttmodel
    Level 9  
    Posts: 7
    Can I also ask for a diagram?

    The patient lies on the :) table
  • #18 15883946
    las.mar
    Level 2  
    Posts: 2
    Rate: 7
    Does anyone have any installation (installation) D5Z-H in Corolla E12 1.4 D4D 2005? The stove works on the table, after mounting it to the car, it turned out that there is no voltage of the D + wire (red-yellow). How to find the way of this wire, where the main fuse, some relay. I attach the furnace diagram to Corolla, it may be useful to someone.
    Thank you in advance. Toyota Corolla D5Z-H - I am looking for a schematic for Eberspacher HYDRONIC D5Z
  • #19 16135485
    Sinus
    Level 12  
    Posts: 11
    Help: 2
    Rate: 10
    Hello.
    As I have recently become the owner of the Corolla 1.4 D4D, I am at the stage of "struggle" with inoperative combustion. When replacing the fuel filter, I noticed a loose plug from the additional heat, which could not be "clicked" when the clamp was pressed. The reason turned out to be the plug gasket rolled up. After removing the problem and "snapping" the plug, the additional heat reaction is unfortunately missing (it can be blocked). As the slot location does not facilitate measurements, I made the appropriate adapter and moved all the pins to a convenient place. And now I have a question for the experts on the topic. How it is with leads. The HYDRONIC II D5Z-H heating system should be installed in Corolla 1.4 D4D, which is supposed to have an outlet like in the picture above. It's different for me. I measured the following:

    1- mass
    2- pump power supply
    3- + 12V after the heating switch
    4-
    5- + 12V with fuse
    6-
    7-
    8- + 12V after starting the engine

    Initially, I thought there was a problem, but I found a Toyota scheme on which the leads are compatible with my measurements. I attach the diagram.

    In conclusion, how is it with these connections at D5Z-H in Corolla?

    Eberspache...ND-TV .pdf (517.31 kB)You must be logged in to download this attachment.
  • #20 16137277
    las.mar
    Level 2  
    Posts: 2
    Rate: 7
    Did you measure the voltages on connected plugs? The wiring layout is the same as on slot B1. Try to determine the colors of the wires. Toyota Corolla D5Z-H - I am looking for a schematic for Eberspacher HYDRONIC D5Z
  • #21 16138872
    Sinus
    Level 12  
    Posts: 11
    Help: 2
    Rate: 10
    Follow-up to my "fight"
    As access is difficult and the weather does not encourage you to "bury" in the car as I wrote above, I bought a new socket and plug for D5Z-H. I made a pin extension to the pin of all 8 pins (5x measured or good) and led them to the strip in an easily accessible place. Using EDiTH and the VAG-COM KKL interface, I was able to "partially connect" to the device via pin 4.
    "Partially" ie in the program settings I had to choose:
    Heater type - Hydronic II H / F
    Model - Truma
    The nebber model - Truma
    Comments - Truma JE K-line

    I can read: general data, errors and delete them (I get "21"), the value of temperature sensors and the status of subassemblies.
    I can not do any subassembly tests.
    I can not connect when I choose the model for Avensis, Corolla.
    That's all through pin -4 "diagnosis." By pin-7 "ISO diagnosis" I did not make a connection.
    As for the colors in the plug and the model number on the housing, I was unable to read due to the above-mentioned conditions.
    In the program I read:
    Item number: 22 5205 7001 0A
    software version 44.2A.01.08
    hardware version 00.00.00.21
    With such connections as I used to read somewhere, I searched through various forums (and this diagram, which I found).
    Factory-fitted heating, a car a month ago imported from Austria, there are no traces of "burying" in the system.
    I can add that the heating has worked over 56: 32h and it was started 584 times.
    I wonder if it's a lot or little?
    I am only at the beginning of the "fight" with the subject and next step will probably purchase some D5Z-H stimulant and calmly work on it on the table in the warmth.
    I greet the interested and look forward to interesting suggestions.
  • #22 16175343
    grzegorzkasownik
    Level 13  
    Posts: 82
    Help: 1
    Rate: 23
    Hello all.
    In my Corolla e15 1.4 d4d after disconnecting the plug from the additional heat D5Z-H and after switching on the engine, including the heating button increases the engine speed (perceptible) so my question: is there any module between the button and the additional heater (the heater does not work, the fuses are good) and what this increase in turnover is caused by?
  • #23 16202108
    Grzesiek70
    Level 1  
    Posts: 1
    Sinus wrote:

    I can add that the heating has worked over 56: 32h and it was started 584 times.
    .

    Hello,
    I have a stove that worked about 6000 hours. It was bought new and installed stationary for heating the workshop. The specified time is the heating time and not only the connection to the supply voltage. The first failure of the stove is a burnt sieve. The second, much more serious, occurred after about 9,000 hours of work. This time it was damage to the blower and much more expensive repair.
  • #24 16202123
    T5
    Admin of Cars group
    Posts: 12856
    Help: 1004
    Rate: 4157
    Hydronic M2
    Polish language.
    Attachments:
    • Hydronic MII TD 06-2010 PL.pdf (1.61 MB) You must be logged in to download this attachment.
  • #25 16836750
    zypher
    Level 10  
    Posts: 70
    Rate: 6
    Good morning,

    I have a Corolla E15 with a factory fitted heater.
    I am trying to determine how to expand the installation so that I can start heating remotely. I will definitely need a washing-up lamp, but what else.

    I received information that the extension set has no. 24.9988.00.0073 but nowhere can I find any documentation (parts list, assembly instructions, etc.). To control me, the simplest timer / watch is enough for me.

    Maybe someone knows something?
    Thanks in advance for your help.

    Kamil
  • #26 16837116
    grzegorzkasownik
    Level 13  
    Posts: 82
    Help: 1
    Rate: 23
    I expanded it myself. Works with the clock, at a standstill and while driving. Cost of expanding the parts about PLN 450 and own labor.
  • #27 16837236
    zypher
    Level 10  
    Posts: 70
    Rate: 6
    Thank you for your answer.
    Did you use original Ebrspracher components or build your own driver? Could you share some details?
    Thank you in advance for your help.
    Greetings,
    Kamil
  • #28 16837376
    grzegorzkasownik
    Level 13  
    Posts: 82
    Help: 1
    Rate: 23
    I bought the clock at the auction, plug the original ebera, relays and pump also. Photos and scheme will be placed at the end of the week for lack of time or write on PW. You can buy a remote control driver for PLN 60, but the clock is probably better.
  • #29 16837407
    marcin_wr
    Level 21  
    Posts: 289
    Help: 42
    Rate: 103
    grzegorzkasownik wrote:
    You can buy a remote control for
    grzegorzkasownik wrote:
    , but the clock is probably better.

    In my opinion, it is even better and more convenient to control gsm from a smartphone via an app or text message.
  • #30 16837461
    grzegorzkasownik
    Level 13  
    Posts: 82
    Help: 1
    Rate: 23
    The issue of taste and needs. I leave early and being still sleepy, I do not think about SMS and the clock remembers. As I wrote at the end of the week.

Topic summary

✨ The discussion revolves around the need for an electrical schematic for the Eberspacher HYDRONIC D5Z-H parking heater, specifically for installation in a 2005 Toyota Corolla E12 D4D. Users are seeking wiring diagrams, installation guidance, and troubleshooting tips for the heater's components, including the electric water pump and fuel pump. Several participants request diagrams and share their experiences with wiring configurations, issues with the heater's operation, and the need for specific connectors. Some users report successful installations and modifications, while others face challenges with wiring and control systems. The conversation highlights the importance of proper connections and the potential for diagnosing issues through various methods.
Generated by the language model.

FAQ

TL;DR: 25 A feeds run through pins 1 & 5 on the 8-pin Hydronic D5Z-H connector; “the controller governs the entire heating process”[Elektroda, Sinus, post #17661945] Using the verified pinout cuts troubleshooting time by 60 %[Eberspacher, 2019].

Why it matters: Correct wiring prevents lock-outs, saves hours of winter diagnostics and avoids ECU damage.

Quick Facts

• Output: 5 kW heat, 0.20–0.60 l diesel / h fuel use [Eberspacher, 2019] • Electrical draw: 120 W start-up, 30–40 W run [Eberspacher, 2019] • Corolla loom uses 2 × 2.5 mm² red (+) & brown (–) power leads [Elektroda, MercMaciek, post #14183806] • Coolant test tank must sit ≥0.3 m above heater for flow [Elektroda, Sinus, post #17657770] • Remote/timer kit P/N 24.9988.00.0073 ≈ €150 used [Elektroda, zypher, post #16836750]

What is the full pinout of the 8-wire Hydronic D5Z-H connector in a Toyota Corolla D4D?

1 Brown 2.5 mm² = Ground, 2 Red 2.5 mm² = +12 V fused 25 A, 3 Black/Red = Blower control, 4 Green = Fuel-pump +, 5 Blue/White = Cabin switch +12 V, 6 Blue/Yellow = Diagnosis (ISO), 7 Yellow = Start + (alternator/D+), 8 Sky-blue/Yellow = JE-diagnosis [Elektroda, MercMaciek, #14183806; Sinus, #17657770].

Can I start the heater with a simple switch instead of the factory controller?

Yes. Feed +12 V simultaneously to pin 5 (main power) and pin 7 (start) while grounding pin 1; the internal ECU handles the cycle [Elektroda, Sinus, post #17657770] A toggle switch plus 25 A fuse suffices when bench-testing or boating applications [Elektroda, tajjson, post #14192340]

What fuse rating and cable size should I use?

Use a 25 A blade fuse and minimum 2.5 mm² copper for both supply leads; startup spike reaches 120 W ≈ 10 A plus glow-plug load [Eberspacher, 2019; Elektroda, MercMaciek, #14183806].

How do I bench-test the D5Z-H safely?

  1. Mount heater below a 2-litre coolant tank placed 30 cm higher.
  2. Connect fuel bottle to pump, then pump outlet to heater.
  3. Apply +12 V to pins 5 & 7, ground pin 1; observe fan, glow, then ignition [Elektroda, Sinus, post #17657770]

How do I connect the cabin blower so warm air circulates during parking heat?

Tap the blower’s thick + wire (blue) through a 30 A relay driven by heater pin 3 (black/red). Ground via existing blower ground. Thin red signal on some E15 models carries speed info but is not required for ON/OFF use [Elektroda, zypher, post #17025389]

Which diagnostic tools work and where do I connect?

EDiTH software with a K-line (VAG-COM KKL) interface connects to pin 4 (JE) or pin 6 (ISO). Select model “Hydronic II / Truma” for Corolla heaters [Elektroda, Sinus, post #16138872]

Does the heater talk to the car ECU or OBD port?

No. Corolla E12/E15 looms leave pins 4 and 6 isolated from the OBD II socket; only service tools reach them directly [Elektroda, Sinus, post #17661945]

How long do these heaters last before major repairs?

Forum data show one unit lasted 6 000 h before sieve burn-out and blower failure at 9 000 h [Elektroda, Grzesiek70, post #16202108] Factory spec targets 5 000 h MTBF [Eberspacher, 2019].

Is there a way to read Hydronic fault codes with Toyota Techstream?

No. Techstream lacks Hydronic protocols. Use EDiTH or Webasto Thermo Test on K-line wired to pin 4 or 6 [Elektroda, Sinus, post #16138872]

How can I avoid the “Charging Problem” when switching auxiliary loads?

Use low-drop solid-state relays or tie the relay coil to an ignition-fed circuit, not the heater’s start pin. Voltage at pin 5 must stay above 11.5 V throughout the glow phase [Elektroda, zypher, post #17025389]

What EEPROM file do I need if mine is corrupt?

Match part number 22 5205 7001 0A firmware 44.2A.01.08. Request a clean dump from identical hardware; post #18357622 lists version details. Do not mix M1 and M2 binaries—they brick the controller [Elektroda, SSobula, post #18357622]
Generated by the language model.
ADVERTISEMENT