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1.3 - Diagnostic test equipment 32.a - Connection schematic, rotorless high voltage distributor Model 463 with Engine 104.996 HFM

Type dh · topic 07.51 · version 9770 · 1997-05-17

Applies to:

Where it sits

Function group 1 Engine › 07 Mixture formation › 07.51 HFM-SFI fuel injection/ignition system

Also applies to engines/gearboxes: 104 996

Connection schematic, rotorless high voltage distributor


Bei Beanstandung in der Start- bzw. Warmlaufphase, Motor nicht auf Betriebstemperatur konditionieren, sondern beanstandungsbezogen vorgehen.

When installing ensure that the kV sensors are properly seated. If the gap between the kV sensor and ignition coil is too large erroneous readings can occur.
With May & Christe ignition coils the arrow on the kV sensor must point toward the output.

Short description

Cover panel for ignition coils on cylinder head cover

Intake connection line on hot film mass air flow sensor

Connecting primary side:

Primary adapter (055/1) with cable to ignition coils T1/1, T1/2, T1/3

HHT or pulse counter to diagnostic socket (X11/4)

TN signal for adapter CD1222 to (X11/4 16-pin socket 10 or

X11/4 38-pin socket 13 )

Connecting secondary side:

Red trigger clip from diagnostic tester

Red trigger clip from CD1222

Wires

kV clip (063/1, (063/3) and (063/5)

Wires

kV sensor (063/2, (063/4) and (063/6)

Power supply for CD1222 adapter unit:

Black ground lead (sw), red lead, terminal 15 (red)

remove, install.

remove, install.

connect, disconnect

connect, disconnect

connect, disconnect

connect to metal bow on CD1222 as well as coupling for kV recognition (061/1), disconnect.

connect to ignition wire for cylinder 1, disconnect.

connect to CD1222 with kV clip 1, 3 and 5, disconnect.

connect to ignition wires 1, 3 and 5, disconnect.

connect to CD1222 with kV clip 1, 3 and 5, disconnect.

connect to ignition coil 2, 4 and 6, disconnect.

connect to (X11/4), disconnect.

Connection schematic, rotorless high voltage distributor


Note

Different kV sensors are required for the Bosch and May & Christe ignition coils due to the version.

Note

If two ignition coil needles point downward or no display appears on the oscilloscope with the engine running, select another combination with

the "firing sequence" coding switch (basic setting "11").

Diagnostic connector (060) of diagnostic tester (030) to

9-pin diagnostic socket of diagnostic adapter (055)

Vehicle data

Diagnostic tester and adapter CD1223

Vehicle tester and CD1222 adapter

connect, disconnect.

enter.

set to 6 cylinder (see next page).

set mode according to table (see next page).

DC power clip (065)

Exhaust probe (005)

Evacuation funnel (014)

Engine

connect to battery ground lead, disconnect.

insert into exhaust pipe, remove.

connect to exhaust pipe, disconnect.

warm up to engine coolant temperature of approx. 80 °C.

Connection diagram, distributorless high voltage distribution

1.3 - Diagnostic test equipment                                                 
	32.a - Connection schematic, rotorless high voltage distributor                 
	Model 463 with Engine 104.996 HFM

T1/1 Ignition coil 1 (cylinders 2 and 5)
T1/2 Ignition coil 2 (cylinders 3 and 4)
T1/3 Ignition coil 3 (cylinders 1 and 6)
W10 Ground (battery)
X11/4 Data link connector, 16- or 38-pin
005 Exhaust probe
014 Extraction funnel
030 Diagnostic tester
055 Diagnostic adapter
055/1 Primary adapter
060 Diagnostic connector 1/diagnostic tester
061 Trigger clamp (cylinder 1) 2
061/1 Diagnostic adapter trigger clamp
061/2 kV recognition connector
063/1 Cylinder 1 kilovolt clamp
063/2 Cylinder 2 kilovolt pickup
063/3 Cylinder 3 kilovolt clamp
063/4 Cylinder 4 kilovolt pickup
063/5 Cylinder 5 kilovolt clamp
063/6 Cylinder 6 kilovolt pickup
064 Oil thermometer
065 D.C. clamp

075 Pulse counter adapter

Designations on diagnostic adapter

A Ignition circuit selection

B Switching from

S scope image

R smooth running

K comression

C Cylinder selection

D Firing order

E Compensation scope image

P07-6537-57

Referenced documents