Caterpillar C175 16 C175 20 Engine Troubleshooting Manual
File Details:
Caterpillar C175 16 C175 20 Engine Troubleshooting Manual
Language : English
Pages : 224
Size : 3.58 MB
Downloadable : Yes
Format : PDF
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Table Of Contents:
Caterpillar C175 16 C175 20 Engine Troubleshooting Manual
Troubleshooting Section
Introduction
General Information ………………………………………… 4
Welding Precaution …………………………………………. 4
Electronic Service Tools …………………………………… 5
Electronic System Overview
Component Location ……………………………………….. 9
Engine Monitoring System ……………………………… 14
Diagnostic Capabilities ………………………………….. 14
Electrical Connectors …………………………………….. 16
Wiring Information …………………………………………. 18
Configuration Parameters
Configuration Parameters ………………………………. 20
Diagnostic Trouble Codes
Diagnostic Trouble Codes ………………………………. 22
Event Codes
Event Codes ……………………………………………….. 30
Symptom Troubleshooting
Symptom Troubleshooting ……………………………… 39
Alternator Problem (Charging Problem and/or Noisy
Operation) ………………………………………………….. 39
Coolant Contains Fuel …………………………………… 40
Coolant Contains Oil ……………………………………… 40
Coolant Pressure Is Low ………………………………… 41
Coolant Temperature Is High ………………………….. 42
Coolant Temperature Is Low …………………………… 44
Crankcase Pressure Is High …………………………… 45
ECM Does Not Communicate with Other
Modules …………………………………………………….. 46
Engine Cranks but Does Not Start …………………… 46
Engine Does Not Crank …………………………………. 49
Engine Has Mechanical Noise (Knock) ……………. 50
Engine Misfires, Runs Rough or Is Unstable …….. 50
Engine Overspeeds ………………………………………. 52
Engine Top Speed Is Not Obtained …………………. 53
Engine Vibration Is Excessive ………………………… 53
Exhaust Has Excessive Black Smoke ……………… 54
Exhaust Has Excessive White Smoke ……………… 55
Fuel Filter Is Restricted ………………………………….. 56
Fuel Pressure Is High ……………………………………. 57
Fuel Pressure Is Low …………………………………….. 57
Fuel Rail Pressure Is High ……………………………… 59
Fuel Rail Pressure Is Low ………………………………. 60
Fuel Temperature Is High ………………………………. 61
Fuel Transfer Pump Inlet Pressure Is Low ………… 62
Inlet Air Is Restricted ……………………………………… 63
Intake Manifold Air Temperature Is High …………… 64
Oil Consumption Is Excessive ………………………… 65
Oil Contains Coolant ……………………………………… 65
Oil Contains Fuel ………………………………………….. 66
Oil Filter Differential Pressure Problem ……………. 66
Oil Pressure Is Low ……………………………………….. 67
Oil Temperature Is High …………………………………. 68
Power Is Intermittently Low or Power Cutout Is
Intermittent …………………………………………………. 69
Prelubrication Pump Problem …………………………. 70
Turbocharger Turbine Temperature Is High ………. 71
Valve Lash Is Excessive ………………………………… 72
Valve Rotator or Spring Lock Is Free ……………….. 73
Circuit Tests
Coolant Level – Test ………………………………………. 74
Data Link – Test …………………………………………….. 81
Electrical Power Supply – Test ………………………… 89
Ether Starting Aid – Test …………………………………. 96
Fuel Priming Pump – Test …………………………….. 104
Fuel Rail Pressure – Test ………………………………. 111
Injector Solenoid – Test ………………………………… 120
Oil Renewal – Test ……………………………………….. 137
Prelubrication – Test …………………………………….. 143
Sensor Signal (Analog, Active) – Test …………….. 152
Sensor Signal (Analog, Passive) – Test ………….. 164
Sensor Signal (PWM) – Test …………………………. 173
Sensor Supply – Test ……………………………………. 181
Shutdown – Test ………………………………………….. 192
Speed/Timing – Test …………………………………….. 197
Service
Factory Passwords ……………………………………… 207
ECM Will Not Accept Factory Passwords ……….. 207
Electronic Service Tool Does Not Communicate .. 208
Test ECM Mode ………………………………………….. 212
Injector Trim File – Install ………………………………. 213
ECM Software – Install …………………………………. 213
ECM – Configure …………………………………………. 214
ECM – Replace …………………………………………… 215
Electrical Connectors – Inspect ……………………… 216
Index Section
Index …………………………………………………………. 221
Description:
Caterpillar C175 16 C175 20 Engine Troubleshooting Manual
As a reference, simplified schematics for each of the engine’s subsystems are included with each of the circuit tests that are in this manual.
For an accurate representation of the entire electrical schematic that is for your application, refer to the Electrical System Schematic.
During troubleshooting, inspect all harness connections before any component is replaced.
If these connections are not clean and tight, continuous electrical problems or intermittent electrical problems can result.
Check that the wires are pushed into the connectors completely.
Make sure that the connections are tight before other tests are made
. Failure of an electrical component may cause the failure of other components.
Always attempt to correct the cause of an electrical failure before you replace a component.
If wire insulation is punctured, repair the damage.
Seal the damaged wires with 8T-0065 Silicone Sealant.
Cover the sealant with two layers of 1P-0810 Electrical Tape.
Please Note:
- This is the SAME exact manual used by your dealers to fix your vehicle.
- The same can be yours in the next 2-3 mins as you will be directed to the download page immediately after paying for the manual.
- Any queries / doubts regarding your purchase, please feel free to contact [email protected]
Fabian Murphy –
It was fast and gave me what I have been looking for.