Date: Sat, 23 Feb 2008 20:49:41 -0800
Reply-To: neil N <musomuso@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: neil N <musomuso@GMAIL.COM>
Subject: Re: Bentley wiring diagram. Questions on how to read.
In-Reply-To: <20080224035210.8346B1165C3@hamburg.alientech.net>
Content-Type: text/plain; charset=ISO-8859-1
Totally thanks much.
I see what are explaining, up to the part where it goes from track 42
to the fuse and relay.
I see it going to 42 which *looks like* ground. Do "we" assume that
since there is already a ground from 31 that it must go to the fuse
etc? Which is not visually connected in the diagram? And to boot there
is a track reference number of 69 at the end of the wire from S18?
I'm not arguing :^)
And I really appreciate the patient help.
I just don't get it. Why couldn't they just draw a dang line from 42
up to the dang connection at S18? (he says doing his best Napoleon
Dynamite impersonation)
Ahhhhh! I'm loosing my mind! Heh heh.
But really, in the big picture it doesn't really matter. Once I get my
hands on the parts during the engine install, I'll stand a much better
chance of "seeing" it and how it should go. Bottom line, I need a
relay that gets turned on by the ECM which in turn will close the
circuit supplying power to the fuel pump.
On Sat, Feb 23, 2008 at 7:52 PM, Mike S <mikes@flatsurface.com> wrote:
> At 09:48 PM 2/23/2008, neil N wrote...
>
> >Hmmm. That's what I thought. Obviously I'm missing something.
> >Especially re: Jetta fuel pump. It connects to 31 at top and appears
> >to go to a ground on another page.
>
> On the Jetta: Yep, ground isn't _always_ at the bottom. You're correct,
> 31 is ground. It's shown at the top in that diagram because that ground
> is part of the fuse/relay panel. So, the fuel pump is grounded via the
> fuse panel, the other side goes to current track 42, where it goes up
> and connects through fuse 18 (S18) to the fuel pump relay (J17), then
> via a wire connector (TV2) to terminal 30 (which goes to battery +,
> track 4).
>
> Just to make sure there's some useful Vanagon content, below is a list
> of DIN terminal number I got from somewhere. Useful to save for
> reference.
>
> >From Bosch Automotive Handbook, 3rd edition
>
> Terminal Designations (Excerpts from DIN Standard 72 552)
> The terminal designations do not identify the conductors, because
> device with different terminal designations can be connected at the two
> ends of each conductor. If the number of terminal designations is not
> sufficient (multiple-contact connections), the terminals are
> consecutively numbered using numbers or letters whose representations
> of specific functions are not standardized.
>
> Terminal Definition
> -----------------------------------------------------------------------
> IGNITION
> 1 Ignition coil, ignition distributor, low voltage
> -----------------------------------------------------------------------
> (Ignition distributor with two separate electrical circuits)
> 1a to ignition contact breaker I
> 1b to ignition contact breaker II
> -----------------------------------------------------------------------
> 2 short-circuit terminal (magneto ignition)
> 4 Ignition coil, ignition distributor, high voltage
> -----------------------------------------------------------------------
> (ignition distributor with two separate electrical circuits)
> 4a from ignition coil I, terminal 4
> 4b from ignition coil II, terminal 4
> -----------------------------------------------------------------------
> 15 Switched + downstream of battery
> (output of ignition/driving switch)
> 15a Output at dropping resistor to ignition coil and starter
> -----------------------------------------------------------------------
> GLOW PLUG AND STARTER SWITCH
> 17 Start
> 19 Preheat
> -----------------------------------------------------------------------
> BATTERY
> 30 input from + battery terminal, direct
> 30a input from + terminal of battery II
> (12/24 V series-parallel battery switch)
> 31 Return line to battery
> - battery terminal or ground, direct
> 31b Return line to negative battery terminal or ground, via switch
> or relay (switched negative)
> -----------------------------------------------------------------------
> (12/24 V series-parallel battery)
> 31a Return line to - terminal of battery II
> 31c Return line to - terminal of battery I
> -----------------------------------------------------------------------
> ELECTRIC MOTORS
> 32 Return line
> (Polarity reversal possible at terminals 32-33)
> 33 Main terminal connection
> (Polarity reversal possible at terminals 32-33)
> 33a Self-parking switch-off
> 33b Shunt field
> 33f For second lower-speed range
> 33g For third lower-speed range
> 33h For fourth lower-speed range
> 33L Counterclockwise rotation
> 33R Clockwise rotation
> -----------------------------------------------------------------------
> STARTER
> 45 Separate starter relay, output; starter input (main current)
> 45a Output, starter I
> Input, starters I and II (Two-starter parallel operation)
> 45b Output, starter II (Two-starter parallel operation)
> 48 Terminal on starter and on start-repeating relay for
> monitoring starting procedure
> -----------------------------------------------------------------------
> TURN SIGNAL FLASHER
> 49 Input
> 49a Output
> 49b Output, second turn-signal circuit
> 49c Output, third turn-signal circuit
> -----------------------------------------------------------------------
> STARTER
> 50 Starter control (direct)
> 50a Output for starter control
> (Series-parallel battery switch)
> 50b Starter control with parallel operation of two starters with
> sequential control
> 50c Input at starting relay for starter I
> (Starting relay for sequential control of the engagement
> current during parallel operation of two starters)
> 50d Input at starting relay for starter I
> (Starting relay for sequential control of the engagement
> current during parallel operation of two starters)
> 50e Input, Start-locking relay
> 50f Output, Start-locking relay
> 50g Input, Start-repeating relay
> 50h Output, Start-repeating relay
> -----------------------------------------------------------------------
> ALTERNATOR
> 51 DC voltage at rectifier
> 51e DC voltage at rectifier with choke coil for daytime driving
> -----------------------------------------------------------------------
> TRAILER SIGNALS
> 52 Signals from trailer to towing vehicle, general
> -----------------------------------------------------------------------
> WIPER MOTOR
> 53 Wiper motor, input (+)
> 53a Wiper (+), self-parking switch-off
> 53b Wiper (shunt winding)
> 53c Electric windshield-washer pump
> 53e Wiper (brake winding)
> 53i Wiper motor with permanent magnet and third brush (for higher
> speed)
> -----------------------------------------------------------------------
> TRAILER SIGNAL
> 54 For lamp combinations and trailer plug connections
> TRAILER STOP LAMP
> 54g Pneumatic valve for additional retarding brake,
> electromagnetically actuated
> -----------------------------------------------------------------------
> LIGHTING
> 55 Fog lamps
> 56 Headlamp
> 56a High beam, high-beam indicator lamp
> 56b Low beam
> 56d Headlamp-flasher contact
> 57 Side-marker lamp: motorcycles, mopeds.
> Abroad also cars, trucks, etc.
> 57a Parking lamp
> 57L Parking lamp, left
> 57R Parking lamp, right
> 58 Side-marker lamps, tail lamps, license-plate lamps and
> instrument-panel lamps
> 58b Tail-lamp changeover for single-axle tractors
> 58c Trailer plug-and-receptacle assembly for single-conductor
> tail-lamp cable with fuse in trailer
> 58d Variable-intensity instrument-panel lamp, tail-lamp and
> side-marker lamp
> 58L Side-marker lamp, left
> 58R Side-marker lamp, right; license-plate lamp
> -----------------------------------------------------------------------
> ALTERNATOR (magneto, generator)
> 59 AC voltage, output
> Rectifier, input
> 59a Charging armature, output
> 59b Tail-lamp armature, output
> 59c Stop-lamp armature, output
> 61 Alternator charge-indicator lamp
> -----------------------------------------------------------------------
> TONE-SEQUENCE CONTROL DEVICE
> 71 Input
> 71a Output to horns 1 & 2, low
> 71b Output to horns 1 & 2, high
> 72 Alarm switch (rotating beacon)
> -----------------------------------------------------------------------
> INTERIOR
> 75 Radio, cigarette lighter
> 76 Speaker
> 77 Door-valve control
> -----------------------------------------------------------------------
> SWITCHES
> ----------(Break-contact and changeover switches)----------------------
> 81 Input
> 81a 1st output, break side
> 81b 2nd output, break side
> ----------(Make-contact switches)--------------------------------------
> 82 Input
> 82a 1st output
> 82b 2nd output
> 82z 1st input
> 82y 2nd input
> ----------(Multiple-position switches)---------------------------------
> 83 Input
> 83a Output, position 1
> 83b Output, position 2
> 83L Output, left-hand position
> 83R Output, right-hand position
> -----------------------------------------------------------------------
> CURRENT RELAY
> 84 Input, actuator and relay contact
> 84a Output, actuator
> 84b Output, relay contact
> -----------------------------------------------------------------------
> SWITCHING RELAY
> 85 Output, actuator (end of winding to ground or negative)
> 86 Start of winding
> 86a Start of winding or 1st winding
> 86b Winding tap or 2nd winding
> ----------(relay contact for break and changeover contacts)------------
> 87 Input
> 87a 1st output (break side)
> 87b 2nd output
> 87c 3rd output
> 87z 1st input
> 87y 2nd input
> 87x 3rd input
> ----------(Relay contact for make contact)-----------------------------
> 88 Input
> ----------(Relay contact for make and changeover contacts (make side))-
> 88a 1st output
> 88b 2nd output
> 88c 3rd output
> ----------(Relay contact for make contact)-----------------------------
> 88z 1st input
> 88y 2nd input
> 88x 3rd input
> ------------------------------------------------------------------------
> ALTERNATOR and VOLTAGE REGULATOR
> GENERATOR and GENERATOR REGULATOR
> B+ Battery positive
> B- Battery negative
> D+ Dynamo postive
> D- Dynamo negative
> DF Dynamo field
> DF1 Dynamo field 1
> DF2 Dynamo field 2
> ----------(Alternator with separate
> rectifier)--------------------------
> J Excitation winding positive
> K Excitation winding negative
> Mp Center point terminal
> U,V,W Alternator terminals
> ------------------------------------------------------------------------
> DIRECTION INDICATOR (turn-signal flasher)
> C First indicator lamp
> C0 Main terminal connection for separate indicator circuits
> actuated by the turn-signal switch
> C2 Second indicator lamp
> C3 Third indicator lamp (e.g., when towing two trailers)
> L Turn-signal lamps, left
> R Turn-signal lamps, right
> ------------------------------------------------------------------------
> Cross-reference for old and new terminal designations in accordance
> with
> DIN 72 552.
> Only terminal designations whose significance has altered are given.
>
> OLD NEW
> 1 1, 53(wiper), 53e
> 2 2, 53e
> 3 53, 53b(wiper)
> 4 4, 53a, 53b(wiper)
> 15 15, 49(turn-signal flasher)
> 15+ 49
> 15/54 15, 49, 54
> 16 15a, 15
> 30 30, 33(motor)
> 30/51 30, 87, 88(relay)
> 30f 45
> 30h 45, 45a
> 30h I 45a
> 30h II 45b
> 30L 33L (motors)
> 30R 33R (motors)
> 31 31, 31c, 32(motors)
> 31a 31a, 31c
> 31B- B-
> 50 50, 50b, 50f, 50h
> 50a 50, 50a, 50e, 50g
> 50b 50d
> 50k 50d
> 50 II 50c
> 51 51, 59, B+
> 51 - 59
> 51a 59
> 51B+ B+
> 54 54, 53a, 54g
> 54/15 15
> 54d 53(wiper)
> 54e 33b, 53b(wiper)
> 54L 49a
> 58 58, 58L, 58R
> 58b 58b, 58d
> 59 59a
> 85d 31b(alarm switch)
> B+30 B+
> B+51 B+
> D+/61 D+
> D-/61 D-
> H 71
> HL L (L54b)
> HR R (R54b)
> K C
> K0 C0
> K1 C, C2
> K2 C2
> K3 C2, C3
> K4 C2, C3
> L54 L (L54)
> N 55
> P C, 57a
> PL 57L
> PR 57R
> R R, 75
> R54 R, (R54)
> R54b Rb
> S 49a, 53(wiper)
> S4 49a
> SBL (L54)
> SBR (R54)
> VL L
> VR R
> + 15, 49(turn-signal flasher)
> 53, 53a(wiper)
> +2 53a
> +15 49
> - 1 (ignition coil), 31
>
>
--
Neil Nicholson. 1981 Air Cooled Westfalia - "Jaco"
http://web.mac.com/tubaneil
http://tubaneil.googlepages.com/
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