36656-94300 Suzuki Guide, extension harness

CAN Data Link
The CAN data link is used by the Electronic Control Module (ECM) to communicate with control modules, display modules, and service tools. The CAN data link is referred to as the J1939 data link. When a diagnostic code is activated, the ECM can transmit information about the diagnostic code over the J1939 data link to these devices. The diagnostic code will be displayed as a two-element code. The following terms describe the elements of the code:Suspect Parameter Number (SPN) - The SPN is a code which is assigned to each component in order to identify data via the data link to the ECM.Failure Mode Identifier (FMI) - The FMI indicates the type of failure.Refer to Table 1 for a complete list of the diagnostic codes and the appropriate troubleshooting procedure.Information for Diagnostic Codes
Table 1 is a list of the diagnostic codes for the engine. The diagnostic codes are cross-referenced with the appropriate procedure that can be used to troubleshoot the code.Cross-Reference from the J1939 Code to the Appropriate Circuit Test
Table 1
Cross-Reference from J1939 Code to the Appropriate Troubleshooting Procedure    
J1939 Code and Description    Troubleshooting Procedure    
91-3 Accelerator Pedal Position 1 : Voltage Above Normal     Troubleshooting, "Speed Control - Test"    
91-4 Accelerator Pedal Position 1 : Voltage Below Normal     Troubleshooting, "Speed Control - Test"    
91-8 Accelerator Pedal Position 1 : Abnormal Frequency, Pulse Width, or Period     Troubleshooting, "Speed Control - Test"    
100-1 Engine Oil Pressure : Low - most severe (3)     Troubleshooting, "Oil Pressure Is Low"    
100-3 Engine Oil Pressure : Voltage Above Normal     Troubleshooting, "Sensor Signal (Analog, Active) - Test"    
100-4 Engine Oil Pressure : Voltage Below Normal     Troubleshooting, "Sensor Signal (Analog, Active) - Test"    
100-13 Engine Oil Pressure : Calibration Required     Troubleshooting, "Pressure Sensor - Calibrate"    
100-17 Engine Oil Pressure : Low - least severe (1)     Troubleshooting, "Oil Pressure Is Low"    
100-18 Engine Oil Pressure : Low - moderate severity (2)     Troubleshooting, "Oil Pressure Is Low"    
101-3 Engine Crankcase Pressure : Voltage Above Normal     Troubleshooting, "Sensor Signal (Analog, Active) - Test"    
101-4 Engine Crankcase Pressure : Voltage Below Normal     Troubleshooting, "Sensor Signal (Analog, Active) - Test"    
101-13 Engine Crankcase Pressure : Calibration Required     Troubleshooting, "Pressure Sensor - Calibrate"    
101-15 Engine Crankcase Pressure : High - least severe (1)     Troubleshooting, "Crankcase Pressure Is High"    
101-16 Engine Crankcase Pressure : High - moderate severity (2)     Troubleshooting, "Crankcase Pressure Is High"    
102-3 Engine Intake Manifold #1 Pressure : Voltage Above Normal     Troubleshooting, "Sensor Signal (Analog, Active) - Test"    
102-4 Engine Intake Manifold #1 Pressure : Voltage Below Normal     Troubleshooting, "Sensor Signal (Analog, Active) - Test"    
102-18 Engine Intake Manifold #1 Pressure : Low - moderate severity (2)     Troubleshooting, "Intake Manifold Air Pressure Is Low"    
105-0 Engine Intake Manifold #1 Temperature : High - most severe (3)     Troubleshooting, "Intake Manifold Air Temperature Is High"    
105-3 Engine Intake Manifold #1 Temperature : Voltage Above Normal     Troubleshooting, "Sensor Signal (Analog, Passive) - Test"    
105-4 Engine Intake Manifold #1 Temperature : Voltage Below Normal     Troubleshooting, "Sensor Signal (Analog, Passive) - Test"    
105-15 Engine Intake Manifold #1 Temperature : High - least severe (1)     Troubleshooting, "Intake Manifold Air Temperature Is High"    
105-16 Engine Intake Manifold #1 Temperature : High - moderate severity (2)     Troubleshooting, "Intake Manifold Air Temperature Is High"    
108-3 Barometric Pressure : Voltage Above Normal     Troubleshooting, "Sensor Signal (Analog, Active) - Test"    
108-4 Barometric Pressure : Voltage Below Normal     Troubleshooting, "Sensor Signal (Analog, Active) - Test"    
108-13 Barometric Pressure : Calibration Required     Troubleshooting, "Pressure Sensor - Calibrate"    
110-0 Engine Coolant Temperature : High - most severe (3)     Troubleshooting, "Coolant Temperature Is High"    
110-3 Engine Coolant Temperature : Voltage Above Normal     Troubleshooting, "Sensor Signal (Analog, Passive) - Test"    
110-4 Engine Coolant Temperature : Voltage Below Normal     Troubleshooting, "Sensor Signal (Analog, Passive) - Test"    
110-15 Engine Coolant Temperature : High - least severe (1)     Troubleshooting, "Coolant Temperature Is High"    
110-16 Engine Coolant Temperature : High - moderate severity (2)     Troubleshooting, "Coolant Temperature Is High"    
111-1 Engine Coolant Level : Low - most severe (3)     Troubleshooting, "Coolant Level Is Low"    
111-17 Engine Coolant Level : Low - least severe (1)     Troubleshooting, "Coolant Level Is Low"    
111-18 Engine Coolant Level : Low - moderate severity (2)     Troubleshooting, "Coolant Level Is Low"    
158-2 Keyswitch Battery Potential : Erratic, Intermittent, or Incorrect     Troubleshooting, "Electrical Power Supply - Test"    
168-2 Battery Potential / Power Input 1 : Erratic, Intermittent, or Incorrect     Troubleshooting, "Electrical Power Supply - Test"    
168-3 Battery Potential / Power Input 1 : Voltage Above Normal     Troubleshooting, "Electrical Power Supply - Test"    
168-4 Battery Potential / Power Input 1 : Voltage Below Normal     Troubleshooting, "Electrical Power Supply - Test"    
172-3 Engine Air Inlet Temperature : Voltage Above Normal     Troubleshooting, "Sensor Signal (Analog, Passive) - Test"    
172-4 Engine Air Inlet Temperature : Voltage Below Normal     Troubleshooting, "Sensor Signal (Analog, Passive) - Test"    
174-0 Engine Fuel Temperature 1 : High - most severe (3)     Troubleshooting, "Fuel Temperature Is High"    
174-3 Engine Fuel Temperature 1 : Voltage Above Normal     Troubleshooting, "Sensor Signal (Analog, Passive) - Test"    
174-4 Engine Fuel Temperature 1 : Voltage Below Normal     Troubleshooting, "Sensor Signal (Analog, Passive