Caterpillar 3126B 3126E Truck Engine Troubleshooting Manual BKD, G3E, DPF, 1AJ

Covers: Caterpillar 3126B and 3126E Truck engines with serial number prefixes:

• BKD 1-Up
• G3E 1-Up
• DPF 1-Up
• 1AJ 1-Up
• 8YL 1-Up
• CKM 1-Up
• CRP 1-Up
• 7AS 1-Up
• 8SZ 1-Up

• Topics in the Caterpillar 3126B, 3126E Truck Engine Troubleshooting Manual:

  Troubleshooting Section
  Electronic Troubleshooting
  System Overview
  Electronic Service Tools
  Replacing the ECM
  Sensors and Electrical Connectors
  Programming Parameters
  Programming Parameters
  Customer Passwords
  ECM Date/Time Stamped Information
  ECM Snapshot
  Passwords
  Passwords Worksheet
  Flash Programming
  Service Information Report
  Customer Specified Parameters
  Customer Specified Parameters
  Customer Specified Parameters Table
  Customer Specified Parameters Worksheet
  Cruise Control Parameters
  Data Link Parameters
  Dedicated PTO Parameters
  Engine/Gear Parameters
  Engine Monitoring Parameters
  Idle Parameters
  Input Selections
  Maintenance Parameters
  Output Selections
  Passwords
  Selected Engine Rating
  Smart Idle Parameters
  Timer Parameters
  Trip Parameters
  Truck Manufacture Parameters
  Vehicle Speed Parameters
  System Configuration Parameters
  System Configuration Parameters
  Troubleshooting without a Diagnostic Code
  Can Not Reach Top Engine RPM
  Can Not Reach Vehicle Speed Limit
  Check Engine Lamp or Warning Lamp Is
  Malfunctioning
  Cruise Control, Idle, or PTO Can Not Be Set
  Driver Questionnaire
  Driver Questionnaire Response
  ECM Will Not Accept Passwords
  Electronic Service Tool Will Not Communicate with
  ECM
  Elevated Idle
  Engine Cranks but Will Not Start
  Engine Has Early Wear
  Engine Misfires, Runs Rough or Is Unstable
  Engine Vibration
  Engine Will Not Crank
  Excessive Black Smoke
  Excessive Valve Lash
  Excessive White Smoke
  Intermittent Cruise Control, Idle, or PTO Kickout
  Intermittent Engine Shutdown
  Intermittent Low Power or Power Cutout
  Low Power/Poor or No Response to Throttle
  Poor Acceleration or Response
  Troubleshooting with a Diagnostic Code
  Diagnostic Codes
  0001-11 Cylinder #1 Injector current fault (72)
  0002-11 Cylinder #2 Injector current fault (72)
  0003-11 Cylinder #3 Injector current fault (73)
  0004-11 Cylinder #4 Injector current fault (73)
  0005-11 Cylinder #5 Injector current fault (74)
  0006-11 Cylinder #6 Injector current fault (74)
  0022-11 Primary to Secondary Engine Speed Signal Calibration (42)
  0022-13 Engine Speed Signal Calibration Not Performed (42)
  0030-08 PTO Throttle signal invalid (29)
  0030-13 PTO Throttle out of calibration (29)
  0041-03 8 Volt Supply voltage high (21)
  0041-04 8 Volt Supply voltage low (21)
  0042-11 Injection Actuation Pressure output fault
  0043-02 Key Switch Fault (71)
  0064-02 Secondary Engine Speed loss of signal
  0064-11 Secondary Engine Speed no pattern
  0070-05 Inlet Air Heater current low
  0070-06 Inlet Air Heater current high
  0071-00 Idle Shutdown Override (01)
  0071-01 Idle Shutdown (47)
  0071-14 PTO Shutdown (47)
  0084-00 Vehicle Overspeed Warning (41)
  0084-01 Vehicle Speed loss of signal (31)
  0084-02 Vehicle Speed signal invalid (36)
  0084-08 Vehicle Speed signal out of range (36)
  0084-10 Vehicle Speed signal rate of change
  0091-08 Throttle Position Invalid (32)
  0091-13 Throttle Position out of calibration (28)
  0096-03 Fuel Level voltage high
  0096-04 Fuel Level voltage low
  0100-03 Oil Pressure voltage high (24)
  0100-04 Oil Pressure voltage low (24)
  0100-11 Very Low Oil Pressure (46)
  0102-03 Boost Pressure voltage high (25)
  0102-04 Boost Pressure voltage low (25)
  0102-07 Boost Pressure not responding
  0105-00 High Intake Manifold Air Temperature Warning (64)
  0105-03 Intake Manifold Air Temperature voltage high (38)
  0105-04 Intake Manifold Air Temperature voltage low
  0105-11 Very High Intake Manifold Air Temperature
  0108-03 Barometric Pressure voltage high (26)
  0108-04 Barometric Pressure voltage low (26)
  0110-00 High Coolant Temperature Warning
  0110-03 Coolant Temperature voltage high (27)
  0110-04 Coolant Temperature voltage low (27)
  0110-11 Very High Coolant Temperature (61)
  0111-01 Low Coolant Level Warning (62)
  0111-02 Coolant Level signal invalid (12)
  0111-03 Coolant Level voltage high (12)
  0111-04 Coolant Level voltage low (12)
  0111-11 Very Low Coolant Level (62)
  0128-03 Secondary Fuel Level voltage high
  0128-04 Secondary Fuel Level voltage low
  0164-00 Excessive Injection Actuation Pressure
  0164-02 Injection Actuation Pressure Signal Erratic
  0164-03 Injection Actuation Pressure voltage high
  0164-04 Injection Actuation Pressure voltage low
  0164-11 Injection Actuation Pressure system fault
  0168-02 ECM Battery Power Intermittent (51)
  0186-14 PTO Engine Shutdown Switch Occurrence
  0190-00 Engine Overspeed Warning (35)
  0190-02 Primary Engine Speed Loss of Signal
  0190-11 Primary Engine Speed no pattern (34)
  0224-11 Theft Deterrent Active (00)
  0224-14 Theft Deterrent Active with Engine Cranking
  0231-02 J1939 Data Incorrect (58)
  0231-11 J1939 Data Link Fault (58)
  0231-12 J1939 Device Not Responding
  0232-03 5 Volt Supply voltage high (21)
  0232-04 5 Volt Supply voltage low (21)
  0246-11 Brake Pedal Switch #1 Fault
  0247-11 Brake Pedal Switch #2 Fault
  0252-11 Engine Software Incorrect (59)
  0253-02 Check Customer or System Parameters
  0253-14 Truck Manufacturer Parameter Not Programmed
  Diagnostic Functional Tests
  5 Volt Engine Pressure Sensor Supply Circuit – Test
  Accelerator Pedal (Throttle) Position Sensor Circuit – Test
  Air Inlet Heater Circuit – Test
  ATA (SAE J1587 / J1708) Data Link Circuit – Test
  Change Oil Lamp Circuit – Test
  Check Engine Lamp Circuit – Test
  Clutch Pedal Position Switch Circuit – Test
  Coolant Level Sensor Circuit – Test
  Cooling Fan Circuit and A/C Compressor Clutch
  Circuit – Test
  Cooling Fan Circuit and A/C High Pressure Switch
  Circuit – Test
  Cruise Control Switch Circuit – Test
  ECM Memory – Test
  Electrical Connectors – Inspect
  Engine Pressure Sensor Open or Short Circuit – Test
  Engine Running Output Circuit – Test
  Engine Speed/Timing Sensor Circuit – Test
  Engine Temperature Sensor Open or Short Circuit – Test
  Exhaust Brake Circuit – Test
  Exhaust Particulate Filter Circuit – Test
  Fast Idle Enable Circuit – Test
  Fast Idle Lamp Circuit – Test
  Fuel Level Sensor Circuit – Test
  Idle Shutdown Timer – Test
  Ignition Key Switch Circuit and Battery Supply Circuit
  Ignore Brake/Clutch Switch Circuit – Test
  Injection Actuation Pressure – Test
  Injection Actuation Pressure Control Valve Circuit – Test
  Injection Actuation Pressure Sensor – Test
  Injector Solenoid Circuit – Test
  Input Selection Switch Circuit – Test
  Neutral Switch Circuit – Test
  Powertrain Data Link Circuit – Test
  PTO Engine Shutdown Switch Circuit – Test
  PTO Shutdown Timer – Test
  PTO Switch Circuit – Test
  PTO Switch ON Lamp Circuit – Test
  Remote PTO Accelerator Position Sensor Circuit – Test
  Service Brake Pedal Position (Switch 1) Circuit – Test
  Service Brake Pedal Position (Switch 2) Circuit – Test
  Starting Aid Output Circuit – Test
  Tachometer Circuit – Test
  Transmission (AT/MT/HT) Relay Circuit – Test
  Vehicle Speed and Speedometer Circuit – Test
  Wait To Start Lamp Circuit – Test
  Warning Lamp Circuit – Test
  Calibration Procedures
  Engine Speed/Timing Sensor – Calibrate
  Vehicle Speed Circuit – Calibrate
  Index

• Pages: 412
  Format: PDF (zipped)
  File size: 4mb
  Compatibility: Windows/Mac computers
  Notes: Instant download only.