Volvo Power Steering Pump: Difference between revisions

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== Part Numbers and Versions ==
[[Category:OEM]]
[[Category:Volvo]]  
[[Category:Volvo]]  
[[Category:Power Steering]]
[[Category:Power Steering]]
Line 8: Line 7:
!Vehicle Used in
!Vehicle Used in
!Comment
!Comment
!
|-
|-
|30636927
|30636927
|
|2004-2013 C30 C70 V50 S40
|
|unverified
|
|-
|-
|31202520
|31202520
|
|2004-2013 C30 C70 V50 S40
|
|unverified
|
|-
|-
|36000075
|36000075
|
|2004-2013 C30 C70 V50 S40
|
|unverified
|
|-
|-
|36000116
|36000116
|
|2004-2013 C30 C70 V50 S40
|
|unverified
|
|-
|-
|36000772
|36000772
|
|2004-2013 C30 C70 V50 S40
|
|unverified
|
|-
|-
|36000801
|36000801
|
|2004-2013 C30 C70 V50 S40
|
|unverified
|
|-
|-
|36001211
|36001211
|
|2004-2013 C30 C70 V50 S40
|
|unverified
|
|-
|-
|36001485
|36001485
|
|2004-2013 C30 C70 V50 S40
|
|unverified
|
|-
|-
|36002698
|36002698
|
|2004-2013 C30 C70 V50 S40
|
|unverified
|
|-
|-
|36050678
|36050678
|
|2004-2013 C30 C70 V50 S40
|
|unverified
|
|-
|-
|8603041
|8603041
|
|2004-2013 C30 C70 V50 S40
|
|unverified
|
|-
|-
|8603274
|8603274
|
|2004-2013 C30 C70 V50 S40
|
|unverified
|
|}
|}


== Electrical Connection ==
== Electrical Connection ==
Input signals, start and stop conditions described in S40 service manual<ref>https://www.volvo-forums.com/attachments/s40my2005_suspensionsteering-pdf.7233/</ref>
The harness for the motor supply can be bought completely (Volvo Part Number: 30775461 <ref>https://usparts.volvocars.com/p/Volvo_2007_C30-24l-5-cylinder/Wiring-Harness-Cable-Harness-Power-Steering-Pump-Electrohydraulic-Power-Steering-Service-Solution-Servo-Pump/42906949/30775461.html (Backup: )</ref>) or just the connector. There is connector kits available online (avoid the pig-tail version as the cable is way undersized. [https://www.ebay.de/itm/264183247309?_nkw=Electric+Power+Steering+%28EPS%29+Pump+Wire+Connector+Kit+Type+1+Fit+for+Volvo+Ford&itmmeta=01J64V8R3PQKQS2EKGFX7V5BVM&hash=item3d828c71cd:g:9YsAAOSwkvtb3Qd3&itmprp=enc%3AAQAJAAABMHoV3kP08IDx%2BKZ9MfhVJKnq1cduF5WgneJWcf2KOIwYLjdi97A8lf5OlJCgf3lStwgB7DXBbzWP5qft6Wq1wk68P2yrbn6NspdbHXbMs%2Fo1lKpey0MBk2Dqf%2BYimnPZ2JcaYs6l1vtYvLq%2FTbkcfppJYbhQ6U1IcaY0%2BTcZ1LLNcMEsG1cAazAwdRpglFiU3VmsIb3MOC9ZgJtYJ0XEm8XvmXBFsGZb9PJlyyXlp5YtkKGxAAM0H0gjTcEUfTXFlbl8jiyw3ziYa%2FjJuc2Db%2B15Kf%2BAQY%2FhWSFyBkaSZK1%2FUit%2FC2tF3wKqv2UPWRrfcw1BV%2BWd1HzbLSbvObyYLAklc%2FNhtRoWci2FP0azltlwmEtiiOaGp4YI1cFSiJtqqDMZeeZSWI8j0AvO6hbAROI%3D%7Ctkp%3ABk9SR4CCo5uxZA Link])
[[File:Volvo eps connections.png|thumb|2011 Volvo S40 T5 Pump connectors]]
=== Connector A (Power)<ref name=":0">Volvo C30 2007 Schematic, TP39103202</ref> ===
{| class="wikitable"
{| class="wikitable"
|+Connector A<ref name=":0">Volvo C30 2007 Schematic, TP39103202</ref>, Part Number: ???
|+Pinout
!Pin Number
!Pin Number
!Cable Color
!Cable Color
Line 81: Line 73:
|1
|1
|Red
|Red
| +12V
| Permanent +12V for Motor
|Fused with a ??A fuse (F2)
|Fused with 80A fuse (F2)
|-
|-
|2
|2
Line 88: Line 80:
|GND
|GND
|
|
|}
{| class="wikitable"
|+
Volvo Part Numbers
!Part
!Part Number
!Comment
|-
|Housing
|31266849<ref>https://usparts.volvocars.com/p/Volvo_2007_C30-24l-5-cylinder/Receptacle-Housing-Cable-Harness-Engine-Component-Parts-Electrical-Power-Steering-Module-EPS/42815694/31266849.html</ref>
|Not verified, possibly different plug?
|-
|-
|
|Housing
|
|30728420<ref>https://usparts.volvocars.com/p/Volvo_2011_S60-30l-6-cylinder-Turbo/Receptacle-Housing-Cable-Harness-Engine-Compartment-Component-Parts-Connector-Control-Module-Power-Steering-EHPS-Electrical-Power-Steering-Module-EPS-/42878531/30728420.html</ref>
|
|Not verified
|
|}
{| class="wikitable"
|+OEM (Yazaki) Part Numbers
!Part
!Part Number
!Comment
|-
|Housing
|7283-2918-10<ref>https://connector.yazaki-group.com/cgi-bin/english/detail.cgi?part_id=7283-2918-10</ref>
|Also in black, P/N 7283-2918-30
|-
|Terminals
|7116-3250<ref>https://connector.yazaki-group.com/cgi-bin/english/detail.cgi?part_id=7116-3250</ref>
|For 8mm<sup>2</sup> wire
|-
|Wire Seals
|7158-3610-80<ref>https://connector.yazaki-group.com/cgi-bin/english/detail.cgi?part_id=7158%2D3610%2D80</ref>
|For 8mm<sup>2</sup> wire
|}
|}
Note: Some later Volvo models use a similar variant of this pump which has a different shaped (smooth housing body) Connector A. Not known if the CAN protocol is different.
=== Connector B (Control)<ref name=":0" /> ===
{| class="wikitable"
{| class="wikitable"
|+Connector B<ref name=":0" />, Part Number: ???
|+Pinout
!Pin Number
!Pin Number
!Cable Color
!Cable Color
Line 103: Line 126:
|1
|1
|Grey-Blue
|Grey-Blue
|
|Ignition +12V for Control
|Fused with a ??A fuse (F53)
|Fused with 10A fuse (F53).
|-
|-
|2
|2
|
|
|CAN-??
|CAN-L
|
|
|-
|-
|3
|3
|
|
|CAN-??
|CAN-H
|
|}
 
A visual guide of the pinout can be found on [https://www.maxxecu.com/webhelp/can_peripheral_control_volvo_powersteering.html this MaxxECU online help page]
{| class="wikitable"
|+
Volvo Part Numbers
!Part
!Part Number
!Comment
|-
|Connector
|31346135<ref>https://usparts.volvocars.com/p/Volvo_2007_C30-24l-5-cylinder/Receptacle-Housing-Electric-Power-Steering-EPAS-Electrical-Power-Steering-Module-PSCM/65250641/31346135.html</ref>
|Not verified
|}
{| class="wikitable"
|+OEM (Yazaki) Part Numbers
!Part
!Part Number
!Comment
|-
|Housing
|7283-8730-30<ref>https://connector.yazaki-group.com/cgi-bin/english/detail.cgi?part_id=7283-8730-30</ref>
|
|-
|Terminals
|7116-1680-02<ref>https://connector.yazaki-group.com/cgi-bin/english/detail.cgi?part_id=7116%2D1680%2D02</ref>
|
|-
|Wire Seals
|7157-3951-60<ref>https://connector.yazaki-group.com/cgi-bin/english/detail.cgi?part_id=7157%2D3951%2D60</ref>
|
|
|}
|}


== CAN Bus Control ==
== CAN Bus Control ==
The CAN bus protocol has been reverse engineered in the rus EFI forum<ref>https://www.rusefi.com/forum/viewtopic.php?f=4&t=2329</ref> and a LUA script example exists<ref>https://github.com/rusefi/rusefi/blob/master/firmware/controllers/lua/examples/Volvo-electric-power-steering-pump.txt</ref>
If it doesn't receive CAN messaging then the pump will run in "limp mode" at 75% of full speed.<ref>https://www.corral.net/threads/volvo-electric-power-steering-conversion-full-write-up.2499503/page-4?post_id=18735339#post-18735339</ref>
 
The CAN bus protocol has been reverse engineered in the RusEFI forum<ref>https://www.rusefi.com/forum/viewtopic.php?f=4&t=2329</ref> and a LUA script example exists<ref>https://github.com/rusefi/rusefi/blob/master/firmware/controllers/lua/examples/Volvo-electric-power-steering-pump.txt</ref>
 
Alternatively, there is an implementation using Arduino code<ref>https://github.com/NMSTEC/Volvo_EPS_FREE</ref>
== Mechanical Properties ==
 
=== Dimensions ===
Approx. 12" x 7" x 7" (305mm x 178mm x 178mm)


=== Fittings ===


== Mechanical Dimensions ==
* High pressure side (pump supply/outlet): M16x1.5 (you can use adapters like this one: https://www.ebay.de/itm/192079081475)
- fittings and sizes
* Low pressure side (pump return/inlet) is just a hose. The fitting on the reservoir is likely 10mm (3/8").


-  
=== Mounting Bracket ===
WillFab Motorsport (WFM) produces a universal fit bracket for this pump. Available [https://www.willfabmotorsport.co.uk/collections/eps-cradles-brackets here] and [https://www.ebay.co.uk/str/wfmttc here].


== Fluid ==
Pentosin CHF 202 is spec'd in the Volvo manual.


== References ==
== References ==
<references />
<references />

Latest revision as of 03:10, 3 October 2025

Part Numbers and Versions

Part Numbers[1]
Part Number Vehicle Used in Comment
30636927 2004-2013 C30 C70 V50 S40 unverified
31202520 2004-2013 C30 C70 V50 S40 unverified
36000075 2004-2013 C30 C70 V50 S40 unverified
36000116 2004-2013 C30 C70 V50 S40 unverified
36000772 2004-2013 C30 C70 V50 S40 unverified
36000801 2004-2013 C30 C70 V50 S40 unverified
36001211 2004-2013 C30 C70 V50 S40 unverified
36001485 2004-2013 C30 C70 V50 S40 unverified
36002698 2004-2013 C30 C70 V50 S40 unverified
36050678 2004-2013 C30 C70 V50 S40 unverified
8603041 2004-2013 C30 C70 V50 S40 unverified
8603274 2004-2013 C30 C70 V50 S40 unverified

Electrical Connection

Input signals, start and stop conditions described in S40 service manual[2]

The harness for the motor supply can be bought completely (Volvo Part Number: 30775461 [3]) or just the connector. There is connector kits available online (avoid the pig-tail version as the cable is way undersized. Link)

2011 Volvo S40 T5 Pump connectors

Connector A (Power)[4]

Pinout
Pin Number Cable Color Function Comment
1 Red Permanent +12V for Motor Fused with 80A fuse (F2)
2 Black GND
Volvo Part Numbers
Part Part Number Comment
Housing 31266849[5] Not verified, possibly different plug?
Housing 30728420[6] Not verified
OEM (Yazaki) Part Numbers
Part Part Number Comment
Housing 7283-2918-10[7] Also in black, P/N 7283-2918-30
Terminals 7116-3250[8] For 8mm2 wire
Wire Seals 7158-3610-80[9] For 8mm2 wire

Note: Some later Volvo models use a similar variant of this pump which has a different shaped (smooth housing body) Connector A. Not known if the CAN protocol is different.

Connector B (Control)[4]

Pinout
Pin Number Cable Color Function Comment
1 Grey-Blue Ignition +12V for Control Fused with 10A fuse (F53).
2 CAN-L
3 CAN-H

A visual guide of the pinout can be found on this MaxxECU online help page

Volvo Part Numbers
Part Part Number Comment
Connector 31346135[10] Not verified
OEM (Yazaki) Part Numbers
Part Part Number Comment
Housing 7283-8730-30[11]
Terminals 7116-1680-02[12]
Wire Seals 7157-3951-60[13]

CAN Bus Control

If it doesn't receive CAN messaging then the pump will run in "limp mode" at 75% of full speed.[14]

The CAN bus protocol has been reverse engineered in the RusEFI forum[15] and a LUA script example exists[16]

Alternatively, there is an implementation using Arduino code[17]

Mechanical Properties

Dimensions

Approx. 12" x 7" x 7" (305mm x 178mm x 178mm)

Fittings

  • High pressure side (pump supply/outlet): M16x1.5 (you can use adapters like this one: https://www.ebay.de/itm/192079081475)
  • Low pressure side (pump return/inlet) is just a hose. The fitting on the reservoir is likely 10mm (3/8").

Mounting Bracket

WillFab Motorsport (WFM) produces a universal fit bracket for this pump. Available here and here.

Fluid

Pentosin CHF 202 is spec'd in the Volvo manual.

References

  1. ↑ https://rusefi.com/forum/viewtopic.php?p=45946#p45946
  2. ↑ https://www.volvo-forums.com/attachments/s40my2005_suspensionsteering-pdf.7233/
  3. ↑ https://usparts.volvocars.com/p/Volvo_2007_C30-24l-5-cylinder/Wiring-Harness-Cable-Harness-Power-Steering-Pump-Electrohydraulic-Power-Steering-Service-Solution-Servo-Pump/42906949/30775461.html (Backup: )
  4. ↑ 4.0 4.1 Volvo C30 2007 Schematic, TP39103202
  5. ↑ https://usparts.volvocars.com/p/Volvo_2007_C30-24l-5-cylinder/Receptacle-Housing-Cable-Harness-Engine-Component-Parts-Electrical-Power-Steering-Module-EPS/42815694/31266849.html
  6. ↑ https://usparts.volvocars.com/p/Volvo_2011_S60-30l-6-cylinder-Turbo/Receptacle-Housing-Cable-Harness-Engine-Compartment-Component-Parts-Connector-Control-Module-Power-Steering-EHPS-Electrical-Power-Steering-Module-EPS-/42878531/30728420.html
  7. ↑ https://connector.yazaki-group.com/cgi-bin/english/detail.cgi?part_id=7283-2918-10
  8. ↑ https://connector.yazaki-group.com/cgi-bin/english/detail.cgi?part_id=7116-3250
  9. ↑ https://connector.yazaki-group.com/cgi-bin/english/detail.cgi?part_id=7158%2D3610%2D80
  10. ↑ https://usparts.volvocars.com/p/Volvo_2007_C30-24l-5-cylinder/Receptacle-Housing-Electric-Power-Steering-EPAS-Electrical-Power-Steering-Module-PSCM/65250641/31346135.html
  11. ↑ https://connector.yazaki-group.com/cgi-bin/english/detail.cgi?part_id=7283-8730-30
  12. ↑ https://connector.yazaki-group.com/cgi-bin/english/detail.cgi?part_id=7116%2D1680%2D02
  13. ↑ https://connector.yazaki-group.com/cgi-bin/english/detail.cgi?part_id=7157%2D3951%2D60
  14. ↑ https://www.corral.net/threads/volvo-electric-power-steering-conversion-full-write-up.2499503/page-4?post_id=18735339#post-18735339
  15. ↑ https://www.rusefi.com/forum/viewtopic.php?f=4&t=2329
  16. ↑ https://github.com/rusefi/rusefi/blob/master/firmware/controllers/lua/examples/Volvo-electric-power-steering-pump.txt
  17. ↑ https://github.com/NMSTEC/Volvo_EPS_FREE
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