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Electrical System Tests Component Locations (Section 21)

ELECTRICAL SYSTEM COMPONENT LOCATIONS (SECTION 21)

Component See
AIR Pump Switchover Valve (Y32) Fig 1 & Fig 10
AIR Relay Module (K17)
Model 129 Fig 4
Model 140 Fig 8
Base Module (N16/1) BM
Model 129 Fig 2
Model 140 Fig 6
CHECK ENGINE MIL (A1e26)
Model 129 Fig 5
Model 140 Fig 9
Data Link Connector - DTC Readout (X11/4)
Model 129 Fig 2
Model 140 Fig 6
Diagnostic Module OBD 1 (N59)
Model 129 Fig 2
Model 140 Fig 6
Diagnostic Module Test Connector - 3 Pole (X11/21)
Model 129 Fig 2
Model 140 Fig 6
EA/CC/ISC Control Module
Model 129 Fig 2
Model 140 Fig 6
FP 1 & 2 Relay Module 1
Model 129 Fig 2
Model 140 Fig 6
FP 1 & 2 Relay Module 2
Model 129 Fig 2
Model 140 Fig 6
Left Adjustable Camshaft Timing Solenoid (Y49/1)
1
Left CKP Sensor (L5/4) Fig 1
Left CMP Sensor (L5/2) Fig 1
Left ECT Sensor (B11/9) Fig 1
Left EGR Switchover Valve (Y27/2) - located on right side of engine. Fig 1 &Fig 10
Left Hot Wire MAF Sensor (B2/3) - located on right side of engine. Fig 1
Left IAT Sensor (B17/5) - located on right side of engine.
Model 129 Fig 3
Model 140 Fig 7
Left Injectors (Y63) Fig 1
Left LH-SFI Control Module (N3/2)
Model 129 Fig 2
Model 140 Fig 6
Left O2S 1 (G3/3) - Before TWC
Model 129 Fig 4
Model 140 Fig 8
Left Purge Control Valve (Y58/2) - located on right side of engine.
Model 129 Fig 3
Model 140 Fig 7
Purge Line To Charcoal Canister (B)
Model 129 Fig 3
Model 140 Fig 7
Purge Line To Engine (A)
Model 129 Fig 3
Model 140 -
Right Adjustable Camshaft Timing Solenoid (Y49/2) Fig 1
Right CKP Sensor (L5/5) Fig 1
Right CMP Sensor (L5/3) Fig 1
Right ECT Sensor (B11/10) Fig 1
Right EGR Switchover Valve (Y27/3) - located on left side of engine. Fig 1 & Fig 10
Right Hot Wire MAF Sensor (B2/4) - located on left side of engine. Fig 1
Right IAT Sensor (B17/6) - located on left side of engine.
Model 129 Fig 3
Model 140 Fig 7
Right Injectors (Y64) Fig 1
Right LH-SFI Control Module (N3/3)
Model 129 Fig 2
Model 140 Fig 6
Right O2S 1 (G3/4) - Before TWC
Model 129 Fig 4
Model 140 Fig 8
Right Purge Control Valve (Y58/3) - located on left side of engine.
Model 129 Fig 3
Model 140 Fig 7
Upshift Delay Switchover Valve (Y3/3)
Model 129 Fig 3
Model 140 Fig 8
Fig 1: Electrical System Tests Component Locations (Section 21) - Engine 120
G00222844Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 2: Electrical System Tests Component Locations (Section 21) - Model 129 (1 Of 4)
G00222845Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 3: Electrical System Tests Component Locations (Section 21) - Model 129 (2 Of 4)
G00222846Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 4: Electrical System Tests Component Locations (Section 21) - Model 129 (3 Of 4)
G00222847Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 5: Electrical System Tests Component Locations (Section 21) - Model 129 (4 Of 4)
G00222848Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 6: Electrical System Tests Component Locations (Section 21) - Model 140 (1 Of 5)
G00222849Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 7: Electrical System Tests Component Locations (Section 21) - Model 140 (2 Of 5)
G00222850Courtesy of MERCEDES-BENZ TRUCK CO., INC.
Fig 8: Electrical System Tests Component Locations (Section 21) - Model 140 (3 Of 5)
G00222851Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 9: Electrical System Tests Component Locations (Section 21) - Model 140 (4 Of 5)
G00222848Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 10: Electrical System Tests Component Locations (Section 21) - Model 140 (5 Of 5)
G00222853Courtesy of MERCEDES-BENZ OF NORTH AMERICA.