Figure 3 – PCM Connectors

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Figure 3 – PCM Connectors . Figure 4 – PCM Connector Pin Removal Tool. Figure 5 – Diagnostic Pin Out Box . Figure 6 – PCM Power and Grounds . Figure 7 – 5V Power Supply (three wire analog sensor) . Figure 9 – CMP and CKP Sensors . - PowerPoint PPT Presentation

Transcript of Figure 3 – PCM Connectors

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 3 – PCM Connectors

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 4 – PCM Connector Pin Removal Tool

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 5 – Diagnostic Pin Out Box

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 6 – PCM Power and Grounds

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 7 – 5V Power Supply (three wire analog sensor)

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 9 – CMP and CKP Sensors

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 10 & 11 – Typical 6 Cyl CKP Trigger and Scope Pattern

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 12 & 13 – Typical 6 Cyl CMP Triggers and Scope Pattern

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 14 – Superimposed CMP and CKP Scope Patterns

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 15 – PCM Digital (switched) Inputs

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 17 – 2-Wire Analog Inputs

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 32 – Integrated Cruise Control System

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 18 – Integrated S/C MUX Switches

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Switch Min/Max Voltage Range

Resume / Accell 3.89V – 4.19V

Set or Set / Coast 3.17V – 3.57V

Coast 2.55V – 2.95V

Cancel 1.60V – 2.00V

On / Off 0.60V – 1.15V

Table 1 – Integrated S/C MUX Switches Voltages

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 19 – O2 Sensor Signal Circuit

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 20 – Ignition Coil (COP) Circuits

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 21 – Injector Control Circuits

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 22 – BOSS Output Control (dual)

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 23 – High-Side Controlled Outputs

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 24 – O2 Sensor Heater Circuits

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 25 – Charging System Control

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 26 – Speed Density Equation (prior to NGC)

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 27 – “Model-Based” Fuel Equation (NGC)

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 29 – Natural Vacuum Principle Demonstrated

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 30 – NVLD Assembly (canister mounted shown)

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 31 – NVLD Schematic

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Figure 34 – Double Start Override System

NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis

Student Learning Objectives:• Identify and explain the hardware differences between the NGC PCM and

previous PCMs• Demonstrate how to use all special tools• Identify, explain and diagnose all engine controller power and ground

supplies, as well as communication networks that are unique to NGC• Identify, explain and diagnose all PCM inputs and outputs that are unique

to NGC• Demonstrate an understanding of the unique differences of the “Model-

Based” fuel strategy on NGC vehicles• Demonstrate an understanding of the unique differences in purge and EGR

strategies• Demonstrate an understanding of the unique differences in accessory

controls• Identify, explain and diagnose the NVLD system