2005 Cadillac XLRFACTORY OEM SERVICE PROCEDURE

Engine Controls Component Views

Fig 1: Top Of Engine (LH2) Component View
GM1276512Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Camshaft Position (CMP) Actuator Solenoid Bank 1 Exhaust
2 Camshaft Position (CMP) Sensor Bank 1 Exhaust
3 Camshaft Position (CMP) Sensor Bank 1 Intake
4 Camshaft Position (CMP) Actuator Solenoid Bank 1 Intake
5 Manifold Absolute Pressure (MAP) Sensor
6 C140
7 Ignition Coil/Module 1
8 Fuel Injector 1
9 Ignition Coil/Module 3
10 Fuel Injector 3
11 Ignition Coil/Module 5
12 Fuel Injector 5
13 Ignition Coil/Module 7
14 Fuel Injector 7
15 Fuel Injector 6
16 Starter
17 C148
18 Fuel Injector 8
19 C139
20 Ignition Coil/Module 8
21 Ignition Coil/Module 6
22 Ignition Coil/Module 4
23 Fuel Injector 4
24 Ignition Coil/Module 2
25 Fuel Injector 2
26 Camshaft Position (CMP) Actuator Solenoid Bank 2 Exhaust
27 Camshaft Position (CMP) Sensor Bank 2 Exhaust
28 Camshaft Position (CMP) Sensor Bank 2 Intake
29 Camshaft Position (CMP) Actuator Solenoid Bank 2 Intake
30 Evaporative Emission (EVAP) Canister Purge Valve
31 Throttle Body Assembly
Fig 2: Exhaust Pipes Component View
GM1276519Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Heated Oxygen Sensor (HO2S) - Bank 2 Sensor 1
2 HO2S - Bank 1 Sensor 1
3 HO2S - Bank 1 Sensor 2
4 HO2S - Bank 2 Sensor 2
Fig 3: Fuel Tanks Component View
GM901394Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Fuel Tank - Left
2 Fuel Pump and Sender Assembly
3 C420
4 Fuel Tank Pressure (FTP) Sensor
5 Fuel Level Sensor - Right
6 Fuel Tank - Right
7 C460
8 C459
Fig 4: Lower Right Rear Of Engine Compartment Component View
GM1358047Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Transmission Control Module (TCM)
2 Transmission Control Module (TCM) Connector
3 Engine Control Module (ECM) Connectors
4 Engine Control Module (ECM)
Fig 5: Behind Lower Left Of I/P Component View
GM1358051Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Acceleration Pedal Position (APP) Sensor
2 Acceleration Pedal
Fig 6: RR Of Vehicle Component View
GM1358052Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Fuel Pump Control Module
Fig 7: Front Of Engine Compartment Component View
GM1358054Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Intake Air Temperature (IAT) Mass Air Flow (MAF) Sensor
2 Throttle Body Assembly
Fig 8: Upper Center Of Engine Component View
GM1358058Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Knock Sensor Bank 2
2 Knock Sensor Bank 2 Connector
3 Knock Sensor Bank 1 Connector
4 Knock Sensor Bank 1
5 Crankshaft Position Sensor
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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