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PAGE 60 — MAYCO C30HDGA CONCRETE PUMP • OPERATION MANUAL — REV. #1 (09/09/19)
ENGINE FAULT CODES
Table 7. GCP ECU Fault Code List for ZPP 416 Engine
NO.
FAULT DESCRIPTION
TURNS ON MIL?
MIL FLASH CODE
Leader/Trailer Code
111
1
Lockoff open / ground short
Yes
6
2
Lockoff short to power
Yes
7
3
CRANK or CAM could not synchronize during start
Yes
216
4
MAP signal low or shorted to ground
Yes
127
5
MAP signal high
Yes
128
6
IAT signal Low/Shorted to GND
Yes
112
7
IAT signal High/Open
Yes
113
8
ECT higher than warning threshold
Yes
116
9
ECT Sensor Low/Shorted Input
Yes
117
10
ECT Sensor High/Open Input
Yes
118
11
TPS 1-2 voltage difference lower than expected
Yes
120
12
TPS 1-2 voltage difference higher than expected
Yes
121
13
Throttle Position Signal 1 low voltage
Yes
122
14
Throttle Position Signal 1 high voltage
Yes
123
15
Pre-Cat O2 Signal No Activity
Yes
134
16
Front O2 sensor heater control fault
Yes
135
17
Closed-loop LPG A/F is too lean
Yes
151
18
Closed-loop LPG A/F is too rich
Yes
152
19
Post-Cat O2 Signal No Activity
Yes
154
20
Closed-loop gasoline bank 1 A/F is too lean
Yes
155
21
Closed-loop gasoline bank 1 A/F is too rich
Yes
156
22
Catalyst inactive on LPG
Yes
165
23
Catalyst inactive on NG
Yes
166
24
Gasoline A/F is too lean (adaptive learn)
Yes
171
25
Gasoline A/F is too rich (adaptive learn)
Yes
172
26
Gasoline Fuel Temp Low Voltage
Yes
182
27
Gasoline Fuel Temp High Voltage
Yes
183
28
LPG Fuel Temp Low Voltage
Yes
187
29
LPG Fuel Temp High Voltage
Yes
188
30
Target TPS Lower than Actual
Yes
211
31
Target TPS Higher than Actual
Yes
212
32
ECT higher than engine shutdown threshold
Yes
217
33
Engine Overspeed Condition
Yes
219
34
TPS1 voltage higher than TPS2 voltage
Yes
221
35
Throttle Position Signal 2 low voltage
Yes
222
36
Throttle Position Signal 2 high voltage
Yes
223
37
Injector 1 Low/Open
Yes
261
38
Injector 1 High/Short
Yes
262