Component/Circuit Identification

WARNING: This page is about a different car, the 1997 Mercedes-Benz SL320, 1997 Mercedes-Benz E320, 1997 Mercedes-Benz C36, and 1997 Mercedes-Benz C280. However, it is still accessible from the selected car via links, so may be relevant.

System components and connections are identified by the manufacturer with special designations in diagnostic information. See COMPONENT/CIRCUIT IDENTIFICATION table.

COMPONENT/CIRCUIT IDENTIFICATION

Component/Circuit

Manufacturer's Designation

Adjustable Camshaft Timing Solenoid

Y49

Air Pump Switchover Valve

Y32

AIR Relay Module

K17

Base Module (Models 129/140)

N16/1

Drive Authorization System (DAS) Control Module

N54/1

Camshaft (CMP) Sensor

B6/1

CAN BUS From ESP/SPS Control Module

N47-5

Crankshaft Position (CKP) Sensor

Cruise Control Switch

S40

EA/CC/ISC Actuator

M16/1

Engine Control Module (ECM)

N3/10

Engine Coolant Temperature (ECT) Sensor

B11/4

EVAP Charcoal Canister Shut-Off Valve

Y58/4

Fuel Injector

⁽¹⁾ Y62y1

Fuel Tank Pressure Sensor

B4/3

Ignition Coil

Cylinders No. 2 & 5

T1/1

Cylinders No. 3 & 4

T1/2

Cylinders No. 1 & 6

T1/3

Intake Air Temperature (IAT) Sensor

⁽²⁾ B17

Knock Sensor 1 (Front)

A16

Knock Sensor 2 (Rear)

A16

Mass Airflow Sensor (MAF)

B2/5

Module Box Bracket Ground (Model 129)

W27

Oil Level Switch

S43

Output Ground Circuit, Right Footwell (Model 140)

W15

Output Ground, Right Component Compartment (Model 202 & 210)

W16/6

O2S 1 (Before TWC)

G3/2

O2S 2 (After TWC)

G3/1

Passenger Side Fuse & Relay Module Box (Model 202)

K40/4

Pedal Value Sensor

B37

Pressure Sensor

B28

Purge Control Valve

Y58/1

Purge Monitoring Pressure Sensor

B4/4

Relay Module (Model 210)

K40

Resonance Intake Manifold Switchover Valve

Y22/6

Stop Light Switch

S9/1

Transmission Control Module

N15/3

Voltage Supply Circuit

Circuit 30

Voltage Supply Circuit (For ECM)

Circuit 87

⁽¹⁾	Last number identifies injector number.

⁽²⁾	IAT sensor is internal to MAF sensor.