VW PASSAT 1999 – 1.9 ltr./66 kW Turbo-diesel engine, engine code AHH, with manual gearbox . Wiring diagrams, Pin Connector, Location

Wiring Diagram VW PASSAT 1999 - Battery - starter - alternator - engine glow plugs

A	Battery
B	Starter
C	Alternator
C1	Voltage regulator
D	Ignition/starter switch
Q6	Glow plugs - (engine)
S125	Engine glow plugs fuse, in protective housing for control units, left in engine compartment
T2b	2-pin connector, blue, right on engine block
T10b	10-pin connector, black, on protective housing for control units, left in engine compartment
T10d	10-pin connector, brown, on protective housing for control units, left in engine compartment
1	Earth strap, battery body
2	Earth strap, gearbox - body
500	Screw connection -1- (30), on relay plate
504	Screw connection -1- (87F), on relay plate
A17	Connection (61), in dash panel wiring harness
A52	Positive connection -2- (30), in dash panel wiring harness
F31	Connection (glow plugs - engine), in diesel direct injection system wiring harness

Wiring Diagram VW PASSAT 1999 - Diesel direct injection system control unit - kick-down switch - idling speed switch - accelerator pedal position sender

F8	Kick-down switch
F60	Idling switch
G79	Accelerator position sender
J52	Glow plug relay
J248	Diesel direct injection system control unit, in protective housing for control units
J317	Terminal 30 voltage supply relay, (219), in protective housing for control units
S102	Engine control unit fuse, in protective housing for control units
T6a	6-pin connector, on injection pump
T10b	10-pin connector, black, on protective housing for control units, left in engine compartment
T10e	10-pin connector, yellow, on protective housing for control units, left in engine compartment
T15a	15-pin connector, white, on protective housing for control units, left in engine compartment
T80	80-pin connector, on diesel direct injection system control unit
81	Earth connection -1- ,in dash panel wiring harness
135	Earth connection -2- ,in dash panel wiring harness
A2	Positive connection (30), in dash panel wiring harness
A52	Positive connection -2- (30), in dash panel wiring harness
F28	Connection -3-, in diesel direct injection system wiring harness
F33	Positive connection (30), in diesel direct injection system wiring harness

Wiring Diagram VW PASSAT 1999 - Diesel direct injection system control unit - engine speed sender - intake manifold pressure sender - intake manifold temperature sender - needle lift sender

G28	Engine speed sender
G71	Intake manifold pressure sender
G72	Intake manifold temperature sender
G80	Needle lift sender
J248	Diesel direct injection system control unit, in protective housing for control units
T2	2-pin connector, brown, near needle lift sender
T3	3-pin connector, black, near engine speed sender
T10b	10-pin connector, black, on protective housing for control units, left in engine compartment
T10d	10-pin connector, brown, on protective housing for control units, left in engine compartment
T80	80-pin connector, on diesel direct injection system control unit
12	Earth point, in engine compartment, left
32	Earth point, behind dash panel, left
81	Earth connection -1-, in dash panel wiring harness
156	Earth connection, in Diesel direct injection system wiring harness
A45	Connection (engine speed signal), in dash panel wiring harness

Wiring Diagram VW PASSAT 1999 - Diesel direct injection system control unit - coolant temperature sender - quantity adjuster - modulating piston movement sender - fuel temperature sender - fuel shut-off valve - commencement of injection valve

G2	Coolant temperature sender
G62	Coolant temperature sender
G81	Fuel temperature sender
G149	Modulating piston movement sender
J248	Diesel direct injection system control unit, in protective housing for control units
N108	Commencement of injection valve
N109	Fuel shut-off valve
N146	Metering adjuster
T10b	10-pin connector, black, on protective housing for control units, left in engine compartment
T10x	10-pin connector, near fuel injection pump
T80	80-pin connector, on diesel direct injection system control unit
F25	Connection -1-, in diesel direct injection system wiring harness
F26	Connection -2-, in diesel direct injection system wiring harness

Wiring Diagram VW PASSAT 1999 - Diesel direct injection system control unit - air mass meter - exhaust gas recirculation valve - charge pressure control solenoid valve

F4	Reversing light switch
G70	Air mass meter
J248	Diesel direct injection system control unit, in protective housing for control units
J397	Radiator fan run-on relay
N18	Exhaust gas recirculation valve
N75	Charge pressure control solenoid valve
T10d	10-pin connector, brown, on protective housing for control units, left in engine compartment
T10e	10-pin connector, yellow, on protective housing for control units, left in engine compartment
T10k	10- pin connector, grey, coupling station left A-pillar
T80	80-pin connector, on diesel direct injection system control unit
A10	Connection (glow plug control), in dash panel wiring harness
A15	Positive connection (15), in instrument wiring harness
A27	Connection (speed signal), in dash panel wiring harness
A70	Connection (15a, fuse 231), in dash panel wiring harness
F25	Connection -1-, in diesel direct injection system wiring harness
---	For vehicles with cruise control system (CCS) only
***	For engine code AFN only

Wiring Diagram VW PASSAT 1999 - Diesel direct injection system control unit - cruise control system switch (CCS) - brake light switch - clutch pedal switch

E45	Cruise control system switch Position 0 = OFF in detent Position 1 = OFF with button Position 2 = ON Position 3 = RES
E227	Cruise control system (CCS) button (Set)
F	Brake light switch
F36	Clutch pedal switch
F47	Cruise cont. sys. brake pedal switch (diesel direct inj. system)
J248	Diesel direct injection system control unit, in protective housing for control units
S13	Fuse in relay plate fuse box
T10	10-pin connector, black, next to steering column
T15a	15-pin connector, white, on protective housing for control units, in left engine compartment
T80	80-pin connector, on diesel direct injection system control unit
A89	Connection (brake light switch), in dash panel wiring harness
A130	Connection (CCS), in dash panel wiring harness
---	For vehicles with cruise control system only

Wiring Diagram VW PASSAT 1999 - Diesel direct injection system control unit - relay for coolant heater elements - coolant heater elements

J248	Diesel direct injection system control unit, in protective housing for control units
J359	Low heat output relay , control number (373), in protective housing for control units
J360	High heat output relay , control number (370), in protective housing for control units
Q7	Coolant heating elements
S109	Coolant heater element fuse, in protective housing for control units
S143	Coolant heater elements fuse 2, in protective housing for control units
T10d	10-pin connector, brown, on protective housing for control units, left in engine compartment (chamber 8 - connection for air conditioner)
T15s	15-pin connector, red, on protective housing for control units, left in engine compartment
T80	80-pin connector, on diesel direct injection system control unit
501	Screw connection -2- (30), on relay plate
A131	Connection (fuel consumption signal), in dash panel wiring harness

Wiring Diagram VW PASSAT 1999 - Oil pressure switch - fuel gauge sender - speedometer sender - sender for coolant shortage indicator - fuel pump - fuel pump relay

F1	Oil pressure switch
G	Fuel gauge sender
G6	Fuel pump (pre-supply pump) *
G22	Speedometer sender, reed contact sender left in gearbox
G32	Coolant shortage indicator sender
G169	Fuel gauge sender -2- *
G237	Fuel gauge sender -3- *
J17	Fuel pump relay, on the 13 position relay carrier* control number (214)
S228	Fuse in fuse holder
T3d	3-pin connector, front left in engine compartment
T4e	4-pin connector
T6c	6-pin connector, blue, coupling station left A-pillar
T10a	10-pin connector, brown, coupling station left A-pillar
T10b	10-pin connector, black, on protective housing for control units, left in engine compartment
75	Earth point, rear pillar, right
156	Earth connection, in Diesel direct injection system wiring harness
197	Earth connection -4-, in rear wiring harness
269	Earth connection (sender earth) -1-, in dash panel wiring harness
A86	Connection (50a), in dash panel wiring harness
*	For vehicles with wheel drive only

Wiring Diagram VW PASSAT 1999 - Dash panel insert - optical and acoustical oil pressure warning - odometer display - coolant shortage and coolant temperature indicator - fuel gauge

G1	Fuel gauge
G3	Coolant temperature gauge
G5	Rev. counter
H11	Oil pressure warning buzzer
J285	Control unit with display in dash panel insert
K2	Alternator warning lamp
K3	Oil pressure warning lamp
K28	Coolant temperature/coolant shortage warning lamp
K29	Glow period warning lamp
L75	Digital display illumination
T32a	32-pin connector, blue, on dash panel insert
T32b	32-pin connector, green, on dash panel insert
Y4	Odometer display