Prochem Everest 408-650, LP-HP - Manual (Page 23)

21
Operations
Trouble Codes
A feature of the ZPP 416 ECM is that DTC's (Diagnostic Trouble Codes) can be displayed to a technician to indicate
what historic faults are present without requiring the use of a personal computer. The DTC's can be flashed over the
MIL output while the RS232 serial receive input (PC RX) is grounded. This input may be grounded at the diagnostic
connector (pin A-brown/white wire). This connector is located behind the intake manifold near the front cylinder.
Once the ECM recognizes that the user is requesting flash codes, ignition key on-engine off, it will flash or blink a
leader code (111) x 3 times in a row. If the machine has been shut down due to a full waste tank you will also
observe flash code 552 (DTC1552) and 554 (DTC1554). After the leader code has been flashed for 3 times, the first
flash code in the active faults category will be flashed at the same rate. This will repeat depending on the number
of faults retained in memory. Once all faults have been flashed the leader flash code (111) will be repeated. The
codes are retained in memory. Once any issue is resolved and the machine started-run-stopped for 3 times without
a fault detected the light will go out on the 4th start. If an issue has not been resolved the light will remain on and
another code stored in history.
History faults will clear automatically after 20 start-run-stop cycles if the fault has not been detected.
#
DTC/
Pcode
Fault Description
CAN
SPN
CAN
FMI
Turns on
MIL?
MIL Flash
Code
Leader/Trailer Code 111
1 P0016
CRANK or CAM could not synchronize during
start
636 8 Yes 216
2 P0091 Fuel Pressure low voltage 94 4 Yes 291
3 P0092 Fuel Pressure high voltage 94 3 Yes 292
4 P0107 MAP Signal open or shorted to ground 106 4 Yes 127
5 P0108 MAP signal shorted high 106 16 Yes 128
6 P0112 IAT signal Low/Shorted to GND 105 4 Yes 112
7 P0113 IAT signal High/Open 105 3 Yes 113
8 P0116 ECT higher than warning threshold 110 15 Yes 116
9 P0117 ECT Sensor Low/Shorted Input 110 4 Yes 117
10 P0118 ECT Sensor High/Open Input 110 3 Yes 118
11 P0121 TPS1 voltage lower than TPS2 voltage 51 1 Yes 121
12 P0122 Throttle Position Signal 1 low voltage 51 4 Yes 122
13 P0123 Throttle Position Signal 1 high voltage 51 3 Yes 123
14 P0134 Pre-Cat O2 Signal No Activity 724 10 Yes 134
15 P0154 Post-Cat O2 Signal No Activity 520208 10 Yes 154
16 P0171 Gasoline bank 1 A/F is lean (adaptive learn) 520200 0 Yes 171
17 P0172 Gasoline bank 1 A/F is rich (adaptive learn) 520200 1 Yes 172
18 P0182 Gasoline Fuel Temp Low Voltage 174 4 Yes 182
19 P0183 Gasoline Fuel Temp High Voltage 174 3 Yes 183
22 P0217 ECT higher than engine shutdown threshold 110 0 Yes 217
23 P0219 Engine Over speed Condition 515 15 Yes 219
24 P0221 TPS1 voltage higher than TPS2 voltage 51 0 Yes 221
25 P0222 Throttle Position Signal 2 low voltage 520251 4 Yes 222
86352170 EVEREST