Electrical - Revision history

Tig: Expand Electrical FAQ table with remaining Tech FAQ migrations

2026-08-13T22:29:34Z

Expand Electrical FAQ table with remaining Tech FAQ migrations

← Older revision		Revision as of 22:29, 13 August 2026
Line 8:		Line 8:
	\| [[Service Indicator Reset]]		\| [[Service Indicator Reset]]
	\| Reset the Oil Service and Inspection lights		\| Reset the Oil Service and Inspection lights
			\|-
			\| [[SI Board Replacement]]
			\| Replace a failed service-interval board
	\|-		\|-
	\| [[E28 Charging System]]		\| [[E28 Charging System]]
Line 14:		Line 17:
	\| [[On-Board Computer (OBC II)]]		\| [[On-Board Computer (OBC II)]]
	\| Time, units, CODE, range calibration, PPPP		\| Time, units, CODE, range calibration, PPPP
			\|-
			\| [[OBC I Went Dead]]
			\| Inline fuse inside the early OBC
	\|-		\|-
	\| [[Radio Wiring]]		\| [[Radio Wiring]]
Line 24:		Line 30:
	\| Euro headlight washers and wipers		\| Euro headlight washers and wipers
	\|-		\|-
	\| [[~~M20~~ - ~~e2i Conversion~~]]		\| [[Turn Signals Don't Work But Hazards Do]]
	\| ~~M20B27 eta~~-to-~~i conversion~~		\| Fuse 11 or turn-signal stalk
			\|-
			\| [[Check Brake Lights Come On at Every Start]]
			\| Normal E28 startup lamp check
			\|-
			\| [[Oil Pressure Light Flickers]]
			\| Sender, wiring, or real low pressure
			\|-
			\| [[Temperature Gauge Troubleshooting]]
			\| How to read it, sender test, SI board, grounds
			\|-
			\| [[Power Window Issues]]
			\| Motors, regulators, switches
			\|-
			\| [[Auto Won't Shift After Cluster Swap]]
			\| Auto stuck in 1st after a cluster swap
			\|-
			\| [[Car Won't Start]]
			\| Where to start when it will not crank/start
			\|-
			\| [[Cold Weather Chime]]
			\| Ice-warning gong below 37 °F
	\|-		\|-
	\| [[Spark Plug FAQ]]		\| [[Spark Plug FAQ]]
	\| Which spark plugs to use		\| Which spark plugs to use
	\|-		\|-
	\| [[~~Temperature Gauge Troubleshooting~~]]		\| [[M20 - e2i Conversion]]
	\| ~~How~~ to ~~read it, sender test, SI board, grounds~~		\| M20B27 eta-to-i conversion
	\|}		\|}

Tig: Point Electrical FAQ table at Temperature Gauge Troubleshooting

2026-08-13T22:13:28Z

Point Electrical FAQ table at Temperature Gauge Troubleshooting

← Older revision		Revision as of 22:13, 13 August 2026
Line 30:		Line 30:
	\| Which spark plugs to use		\| Which spark plugs to use
	\|-		\|-
	\| [[Temperature Gauge ~~- How to Read It?~~]]		\| [[Temperature Gauge Troubleshooting]]
	\| How to read it, sender test, SI board, grounds		\| How to read it, sender test, SI board, grounds
	\|}		\|}

Tig: Update Electrical FAQ blurb for expanded temp gauge page

2026-08-13T22:09:14Z

Update Electrical FAQ blurb for expanded temp gauge page

← Older revision		Revision as of 22:09, 13 August 2026
Line 31:		Line 31:
	\|-		\|-
	\| [[Temperature Gauge - How to Read It?]]		\| [[Temperature Gauge - How to Read It?]]
	\| How to read ~~the cluster temperature gauge~~		\| How to read it, sender test, SI board, grounds
	\|}		\|}

Tig: Add charging, OBC, radio, cruise, and euro wash/wipe FAQs to Electrical FAQ table

2026-08-13T21:57:51Z

Add charging, OBC, radio, cruise, and euro wash/wipe FAQs to Electrical FAQ table

@@ Line 8: / Line 8: @@
 | [[Service Indicator Reset]]
 | Reset the Oil Service and Inspection lights
 |-
 | [[M20 - e2i Conversion]]

Tig: Format Electrical FAQs as a table with wiki links and short descriptions

2026-08-13T21:45:57Z

Format Electrical FAQs as a table with wiki links and short descriptions

← Older revision		Revision as of 21:45, 13 August 2026
Line 1:		Line 1:
	{{PAGEBANNER:MyE28_Banner.jpg\|toc=yes}}		{{PAGEBANNER:MyE28_Banner.jpg\|toc=yes}}
	== Electrical FAQs ==		== Electrical FAQs ==
	* [~~https://forums.mye28.com/viewtopic.php?p=271257#p271257~~ Service Indicator Reset]		{\| class="wikitable"
	* [[M20 - e2i Conversion]]		\|-
	* [[Spark Plug FAQ]]		! FAQ
	* [[Temperature Gauge - How to Read It?]]		! Covers
			\|-
			\| [[Service Indicator Reset]]
			\| Reset the Oil Service and Inspection lights
			\|-
			\| [[M20 - e2i Conversion]]
			\| M20B27 eta-to-i conversion
			\|-
			\| [[Spark Plug FAQ]]
			\| Which spark plugs to use
			\|-
			\| [[Temperature Gauge - How to Read It?]]
			\| How to read the cluster temperature gauge
			\|}

	== E28 Electrical Troubleshooting Manuals (ETM) ==		== E28 Electrical Troubleshooting Manuals (ETM) ==

Tig: Add Electrical FAQs list (SI reset, e2i, spark plugs, temp gauge)

2026-08-13T21:41:57Z

Add Electrical FAQs list (SI reset, e2i, spark plugs, temp gauge)

← Older revision		Revision as of 21:41, 13 August 2026
Line 1:		Line 1:
	{{PAGEBANNER:MyE28_Banner.jpg\|toc=yes}}		{{PAGEBANNER:MyE28_Banner.jpg\|toc=yes}}
			== Electrical FAQs ==
			* [https://forums.mye28.com/viewtopic.php?p=271257#p271257 Service Indicator Reset]
			* [[M20 - e2i Conversion]]
			* [[Spark Plug FAQ]]
			* [[Temperature Gauge - How to Read It?]]

	== E28 Electrical Troubleshooting Manuals (ETM) ==		== E28 Electrical Troubleshooting Manuals (ETM) ==
	ETMs are the go-to resource for tracking down electrical issues in E28s. They appear to only have been printed for US market vehicles, so euro cars may have some minor differences.		ETMs are the go-to resource for tracking down electrical issues in E28s. They appear to only have been printed for US market vehicles, so euro cars may have some minor differences.

Tig: Fix space encoding in manuals URLs ( -> %20)

2026-07-15T16:32:11Z

Fix space encoding in manuals URLs ( -> %20)

← Older revision		Revision as of 16:32, 15 July 2026
Line 30:		Line 30:
	== Other Model ETMs ==		== Other Model ETMs ==
	* [https://forums.mye28.com/manuals/E30_89_ETM.pdf E30 ETM]		* [https://forums.mye28.com/manuals/E30_89_ETM.pdf E30 ETM]
	* [https://forums.mye28.com/manuals/1988~~ BMW 635csi ~~-~~ M6 Electrical Troubleshooting Manual~~.pdf BMW 635csi - M6 Electrical Troubleshooting Manual.pdf]		* [https://forums.mye28.com/manuals/1988%20BMW%20635csi%20-%20M6%20Electrical%20Troubleshooting%20Manual.pdf BMW 635csi - M6 Electrical Troubleshooting Manual.pdf]
	* [https://forums.mye28.com/manuals/1995~~ BMW 525i ~~-~~ 525it ~~-~~ 530i ~~-~~ 530it ~~-~~ 540i Electrical Troubleshooting Manual~~.pdf BMW 525i - 525it - 530i - 530it - 540i Electrical Troubleshooting Manual.pdf]		* [https://forums.mye28.com/manuals/1995%20BMW%20525i%20-%20525it%20-%20530i%20-%20530it%20-%20540i%20Electrical%20Troubleshooting%20Manual.pdf BMW 525i - 525it - 530i - 530it - 540i Electrical Troubleshooting Manual.pdf]
	* [https://forums.mye28.com/manuals/e34_90_etm.pdf e34_90_etm.pdf]		* [https://forums.mye28.com/manuals/e34_90_etm.pdf e34_90_etm.pdf]

Line 37:		Line 37:
	The wiring diagrams are between the more traditional ETM layout and the Schaltplänes.		The wiring diagrams are between the more traditional ETM layout and the Schaltplänes.

	* [Https://wiki.mye28.com/images/6/6b/1981~~ E21 320i ETM Introduction~~.pdf 1981 E21 320i ETM Introduction.pdf]		* [Https://wiki.mye28.com/images/6/6b/1981%20E21%20320i%20ETM%20Introduction.pdf 1981 E21 320i ETM Introduction.pdf]
	* [https://wiki.mye28.com/images/6/6f/1979_E21_320i_Wiring_Diagram.pdf 1979 E21 320i Wiring Diagram.pdf]		* [https://wiki.mye28.com/images/6/6f/1979_E21_320i_Wiring_Diagram.pdf 1979 E21 320i Wiring Diagram.pdf]
	* [https://wiki.mye28.com/images/1/1c/1980_E21_320i_Wiring_Diagram.pdf 1980 E21 320i Wiring Diagram.pdf]		* [https://wiki.mye28.com/images/1/1c/1980_E21_320i_Wiring_Diagram.pdf 1980 E21 320i Wiring Diagram.pdf]

Tig: Rewrite Azure blob URLs to forums.mye28.com/manuals and local banner after R2 migration

2026-07-15T16:31:37Z

Rewrite Azure blob URLs to forums.mye28.com/manuals and local banner after R2 migration

Federico: /* E28 Related Electrical Info and Diagrams */

2025-09-11T15:49:11Z

E28 Related Electrical Info and Diagrams

← Older revision		Revision as of 15:49, 11 September 2025
Line 18:		Line 18:
	* [https://mye28.blob.core.windows.net/$web/manuals/E28%20Schaltplane%20Band%202.pdf E28 Schaltplane Volume 2]		* [https://mye28.blob.core.windows.net/$web/manuals/E28%20Schaltplane%20Band%202.pdf E28 Schaltplane Volume 2]
	* [https://mye28.blob.core.windows.net/$web/manuals/E28%20Schaltplane%20Band%203.pdf E28 Schaltplane Volume 3]		* [https://mye28.blob.core.windows.net/$web/manuals/E28%20Schaltplane%20Band%203.pdf E28 Schaltplane Volume 3]
			* [https://wiki.mye28.com/images/1/17/E28_Klima_bis_86.pdf E28 A/C Wiring, up to 1986, excerpt from Schaltpläne]

	== E28 Related Electrical Info and Diagrams ==		== E28 Related Electrical Info and Diagrams ==
Line 26:		Line 27:
	* [https://mye28.blob.core.windows.net/$web/manuals/bmw-cruise-control-e23-e28.pdf bmw-cruise-control-e23-e28.pdf]		* [https://mye28.blob.core.windows.net/$web/manuals/bmw-cruise-control-e23-e28.pdf bmw-cruise-control-e23-e28.pdf]
	* [https://mye28.blob.core.windows.net/$web/manuals/Bosch%20M-Motronic%20Technical%20Instruction.pdf Bosch M-Motronic Technical Instruction.pdf]		* [https://mye28.blob.core.windows.net/$web/manuals/Bosch%20M-Motronic%20Technical%20Instruction.pdf Bosch M-Motronic Technical Instruction.pdf]
	* [https://wiki.mye28.com/images/1/17/E28_Klima_bis_86.pdf E28 A/C Wiring, up to 1986, from Schaltpläne]

	== Other Model ETMs ==		== Other Model ETMs ==

Federico: A/C wiring added

2025-08-27T13:55:49Z

A/C wiring added

← Older revision		Revision as of 13:55, 27 August 2025
Line 26:		Line 26:
	* [https://mye28.blob.core.windows.net/$web/manuals/bmw-cruise-control-e23-e28.pdf bmw-cruise-control-e23-e28.pdf]		* [https://mye28.blob.core.windows.net/$web/manuals/bmw-cruise-control-e23-e28.pdf bmw-cruise-control-e23-e28.pdf]
	* [https://mye28.blob.core.windows.net/$web/manuals/Bosch%20M-Motronic%20Technical%20Instruction.pdf Bosch M-Motronic Technical Instruction.pdf]		* [https://mye28.blob.core.windows.net/$web/manuals/Bosch%20M-Motronic%20Technical%20Instruction.pdf Bosch M-Motronic Technical Instruction.pdf]
			* [https://wiki.mye28.com/images/1/17/E28_Klima_bis_86.pdf E28 A/C Wiring, up to 1986, from Schaltpläne]

	== Other Model ETMs ==		== Other Model ETMs ==

← Older revision		Revision as of 16:31, 15 July 2026
Line 1:		Line 1:
	{{PAGEBANNER:~~https://mye28.blob.core.windows.net/$web/banner~~.jpg\|toc=yes}}		{{PAGEBANNER:MyE28_Banner.jpg\|toc=yes}}
	== E28 Electrical Troubleshooting Manuals (ETM) ==		== E28 Electrical Troubleshooting Manuals (ETM) ==
	ETMs are the go-to resource for tracking down electrical issues in E28s. They appear to only have been printed for US market vehicles, so euro cars may have some minor differences.		ETMs are the go-to resource for tracking down electrical issues in E28s. They appear to only have been printed for US market vehicles, so euro cars may have some minor differences.
	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/e28_82_etm.pdf 1982 E28 - Electrical Troubleshooting Manual.pdf]		* [https://forums.mye28.com/manuals/e28_82_etm.pdf 1982 E28 - Electrical Troubleshooting Manual.pdf]
	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/e28_83_etm.pdf 1983 E28 - Electrical Troubleshooting Manual.pdf]		* [https://forums.mye28.com/manuals/e28_83_etm.pdf 1983 E28 - Electrical Troubleshooting Manual.pdf]
	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/e28_84_etm.pdf 1984 E28 - Electrical Troubleshooting Manual.pdf]		* [https://forums.mye28.com/manuals/e28_84_etm.pdf 1984 E28 - Electrical Troubleshooting Manual.pdf]
	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/e28_85.pdf 1985 E28 - Electrical Troubleshooting Manual.pdf]		* [https://forums.mye28.com/manuals/e28_85.pdf 1985 E28 - Electrical Troubleshooting Manual.pdf]
	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/1986%20BMW%20528e%20-%20535i%20Electrical%20Troubleshooting%20Manual.pdf 1986 BMW 528e - 535i Electrical Troubleshooting Manual.pdf]		* [https://forums.mye28.com/manuals/1986%20BMW%20528e%20-%20535i%20Electrical%20Troubleshooting%20Manual.pdf 1986 BMW 528e - 535i Electrical Troubleshooting Manual.pdf]
	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/1987-1988%20BMW%20528e%20-%20Electrical%20Troubleshooting%20Manual.pdf 1987-1988 BMW 528e - Electrical Troubleshooting Manual.pdf]		* [https://forums.mye28.com/manuals/1987-1988%20BMW%20528e%20-%20Electrical%20Troubleshooting%20Manual.pdf 1987-1988 BMW 528e - Electrical Troubleshooting Manual.pdf]
	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/e28_88_etm.pdf 1988 E28 - Electrical Troubleshooting Manual.pdf]		* [https://forums.mye28.com/manuals/e28_88_etm.pdf 1988 E28 - Electrical Troubleshooting Manual.pdf]

	== E28 Schaltplänes ==		== E28 Schaltplänes ==
Line 15:		Line 15:
	Scanned copies, originally from the BMW Group Archive, are available in German below. German print copies can occasionally be found on German eBay. English print copies are rare, if you have any please send a PM to [https://www.mye28.com/ucp.php?i=pm&mode=compose&u=27831 Galahad] on the forums or reach out to the [https://www.holygraillabs.com Holy Grail Labs support email].		Scanned copies, originally from the BMW Group Archive, are available in German below. German print copies can occasionally be found on German eBay. English print copies are rare, if you have any please send a PM to [https://www.mye28.com/ucp.php?i=pm&mode=compose&u=27831 Galahad] on the forums or reach out to the [https://www.holygraillabs.com Holy Grail Labs support email].

	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/E28%20Schaltplane%20Band%201.pdf E28 Schaltplane Volume 1]		* [https://forums.mye28.com/manuals/E28%20Schaltplane%20Band%201.pdf E28 Schaltplane Volume 1]
	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/E28%20Schaltplane%20Band%202.pdf E28 Schaltplane Volume 2]		* [https://forums.mye28.com/manuals/E28%20Schaltplane%20Band%202.pdf E28 Schaltplane Volume 2]
	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/E28%20Schaltplane%20Band%203.pdf E28 Schaltplane Volume 3]		* [https://forums.mye28.com/manuals/E28%20Schaltplane%20Band%203.pdf E28 Schaltplane Volume 3]
	* [https://wiki.mye28.com/images/1/17/E28_Klima_bis_86.pdf E28 A/C Wiring, up to 1986, excerpt from Schaltpläne]		* [https://wiki.mye28.com/images/1/17/E28_Klima_bis_86.pdf E28 A/C Wiring, up to 1986, excerpt from Schaltpläne]

	== E28 Related Electrical Info and Diagrams ==		== E28 Related Electrical Info and Diagrams ==

	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/BMW%20ECU%20Wiring%20diagrams%20Menu.pdf BMW ECU Wiring diagrams Menu.pdf]		* [https://forums.mye28.com/manuals/BMW%20ECU%20Wiring%20diagrams%20Menu.pdf BMW ECU Wiring diagrams Menu.pdf]
	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/Euro%20E28%20electrical%20diagrams.pdf Euro E28 electrical diagrams]		* [https://forums.mye28.com/manuals/Euro%20E28%20electrical%20diagrams.pdf Euro E28 electrical diagrams]
	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/bmw-cruise-control-actuator-technical-data.pdf bmw-cruise-control-actuator-technical-data.pdf]		* [https://forums.mye28.com/manuals/bmw-cruise-control-actuator-technical-data.pdf bmw-cruise-control-actuator-technical-data.pdf]
	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/bmw-cruise-control-e23-e28.pdf bmw-cruise-control-e23-e28.pdf]		* [https://forums.mye28.com/manuals/bmw-cruise-control-e23-e28.pdf bmw-cruise-control-e23-e28.pdf]
	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/Bosch%20M-Motronic%20Technical%20Instruction.pdf Bosch M-Motronic Technical Instruction.pdf]		* [https://forums.mye28.com/manuals/Bosch%20M-Motronic%20Technical%20Instruction.pdf Bosch M-Motronic Technical Instruction.pdf]

	== Other Model ETMs ==		== Other Model ETMs ==
	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/E30_89_ETM.pdf E30 ETM]		* [https://forums.mye28.com/manuals/E30_89_ETM.pdf E30 ETM]
	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/1988 BMW 635csi - M6 Electrical Troubleshooting Manual.pdf BMW 635csi - M6 Electrical Troubleshooting Manual.pdf]		* [https://forums.mye28.com/manuals/1988 BMW 635csi - M6 Electrical Troubleshooting Manual.pdf BMW 635csi - M6 Electrical Troubleshooting Manual.pdf]
	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/1995 BMW 525i - 525it - 530i - 530it - 540i Electrical Troubleshooting Manual.pdf BMW 525i - 525it - 530i - 530it - 540i Electrical Troubleshooting Manual.pdf]		* [https://forums.mye28.com/manuals/1995 BMW 525i - 525it - 530i - 530it - 540i Electrical Troubleshooting Manual.pdf BMW 525i - 525it - 530i - 530it - 540i Electrical Troubleshooting Manual.pdf]
	* [https://mye28.~~blob.core.windows.net/$web~~/manuals/e34_90_etm.pdf e34_90_etm.pdf]		* [https://forums.mye28.com/manuals/e34_90_etm.pdf e34_90_etm.pdf]

	=== E21 Wiring Diagrams ===		=== E21 Wiring Diagrams ===