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Fuel Pump Relay Pin (Single Digit) Numbers

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Oka
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Fuel Pump Relay Pin (Single Digit) Numbers

Post by Oka » Sat Dec 14, 2019 9:33 pm

The existing fuel pump relay I removed from my car is a five-pin single digit set of numbers (#s 1,2,3,4, and 5). I am used to the double digit number relays. Could someone please tell me the single digit equivalent to the double digit? I am still searching to get an answer.

Thanks.
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Oka
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Re: Fuel Pump Relay Pin (Single Digit) Numbers

Post by Oka » Sat Dec 14, 2019 9:44 pm

Oka wrote:
Sat Dec 14, 2019 9:33 pm
The existing fuel pump relay I removed from my car is a five-pin single digit set of numbers (#s 1,2,3,4, and 5). I am used to the double digit number relays. Could someone please tell me the single digit equivalent to the double digit? I am still searching to get an answer.

Thanks.
Seconds after posting the above, went back to Googling and I found this site.
https://www.12voltplanet.co.uk/relay-guide.html

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RickHaleParker
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Re: Fuel Pump Relay Pin (Single Digit) Numbers

Post by RickHaleParker » Sun Dec 15, 2019 1:25 am

The two digits numbers are DIN Numbers. DIN numbers label the function of the terminal. Single digit numbers are terminal numbers. There is no translation between the two because they are fundamentally different information and therefore not suited to comparison or translation .... like comparing Apples to Oranges.
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Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
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Re: Fuel Pump Relay Pin (Single Digit) Numbers

Post by abscate » Sun Dec 15, 2019 5:21 am

One is a DIN standard and the other a ISO standard, I don’t remember which is which. I think the 85,86...is DIN since that was on all my old VWs

Ive always wired relays hot signal 85 , ground 86 but have been told the signal works with reversed polarity. I don’t see how the magnet will pull in with opposite current unless switched 87 is bi-directional double pole?

Of course, with a backing diode, you don’t want to reverse polarity for other reasons
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Re: Fuel Pump Relay Pin (Single Digit) Numbers

Post by RickHaleParker » Sun Dec 15, 2019 10:25 pm

abscate wrote:
Sun Dec 15, 2019 5:21 am
One is a DIN standard and the other a ISO standard, I don’t remember which is which. I think the 85,86...is DIN since that was on all my old VWs
ISO has a numbering standard for micro relays (Space constraints) that uses one digit markings. The rest are DIN 72552 / European Norm (EN) 50005.
--------
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger, Plant Ghent Belgium.

Oka
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Re: Fuel Pump Relay Pin (Single Digit) Numbers

Post by Oka » Sat Dec 21, 2019 11:08 pm

Oka wrote:
Sat Dec 14, 2019 9:44 pm
Oka wrote:
Sat Dec 14, 2019 9:33 pm
The existing fuel pump relay I removed from my car is a five-pin single digit set of numbers (#s 1,2,3,4, and 5). I am used to the double digit number relays. Could someone please tell me the single digit equivalent to the double digit? I am still searching to get an answer.

Thanks.
Seconds after posting the above, went back to Googling and I found this site.
https://www.12voltplanet.co.uk/relay-guide.html
The corresponding numbers as in the link worked exactly as it should. I tested the relay with my single corresponding number and it worked perfectly.

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