JLG 450A_AJ Series II Service Manual - Manual (Page 147)

SECTION 3 - CHASSIS & TURNTABLE
3121180 – JLG Lift – 3-97
Table 3-13. ECM Diagnostic Trouble Codes
Diagnostic
Trouble
Code
Description
0,11 All Systems OK
12 Throttle Position (TP) Sensor Low Voltage
13 Hand Throttle Low Voltage
14 Manifold Absolute Pressure (MAP) Low Voltage
15 Manifold Surface Temperature (MST) Low Voltage
21 Overspeed
22 Throttle Position (TP) Sensor High Voltage
23 Hand Throttle High Voltage
24 Manifold Absolute Pressure (MAP) High Voltage
25 Manifold Surface Temperature (MST) High Voltage
26 Initial Throttle Position Sensor (TPS) High Voltage
31 Fuel Pump Low Voltage
32 Heated Oxygen Sensor (HEGO1) Low Voltage
33 Engine Coolant Temperature (ECT) Sensor High Voltage
34 Heated Oxygen Sensor (HEGO2) Low Voltage
35 Intake Air Temperature (IAT) Sensor High Voltage
36 Heated Oxygen Sensor (HEGO1) Inactive
41 Fuel Pump High Voltage
42 Heated Oxygen Sensor (HEGO1) High Voltage
43 Engine Coolant Temperature (ECT/CHT) Sensor Low Voltage
44 Heated Oxygen Sensor (HEGO2) High Voltage
45 Intake Air Temperature (IAT) Sensor Low Voltage
46 Heated Oxygen Sensor (HEGO2) inactive
51 Low Oil Pressure
52 Crankshaft Position (CKP) Sensor Extra/Missing Pulses
53 Camshaft Position Sensor (CMP) Sensor Illegal Pattern
54 Engine Control Module (ECM) Fault Illegal Operation
55 Engine Control Module (ECM) Fault Illegal Interruption
56 Engine Control Module (ECM) Fault COP (Computer Operating Properly) Failure
57 Engine Control Module (ECM) communications error
61 System Voltage Low
62 System Voltage High
63 Rev Limit Exceeded
64 Adaptive fuel coefficient saturated
NOTE: Critical Codes are numbered in bold and underlined.