Nuvera C95A-33 N95A-21 Fuel Cell System Diagnostic Troubleshooting Manual PDF

Nuvera® C95A-33 N95A-21 Fuel Cell System Diagnostic Troubleshooting Manual – PDF DOWNLOAD

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Nuvera® C95A-33 N95A-21 Fuel Cell System Diagnostic Troubleshooting Manual – PDF DOWNLOAD

Language : English
Pages : 190
Downloadable : Yes
File Type : PDF

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TABLE OF CONTENTS:

Nuvera® C95A-33 N95A-21 Fuel Cell System Diagnostic Troubleshooting Manual – PDF DOWNLOAD

List of Figures 8
List of Tables 11
General Information 13
General hazards, warnings, and cautionary statements 13
Overview 15
Diagnostic troubleshooting codes 16
DTC 1-Coolant inlet temperature out of range 16
Diagnose and troubleshoot DTC 1 16
DTC 2-Coolant inlet temperature out of range 18
Diagnose and troubleshoot DTC 2 18
DTC 3-Coolant outlet temperature out of range 20
Diagnose and troubleshoot DTC 3 20
DTC 4-Coolant outlet temperature out of range 22
Diagnose and troubleshoot DTC 4 22
DTC 5-Anode supply pressure out of range 24
Diagnose and troubleshoot DTC 5 24
DTC 6-Anode outlet pressure out of range 26
Diagnose and troubleshoot DTC 6 26
DTC 7-Fuel cell stack current out of range 28
Diagnose and troubleshoot DTC 7 28
DTC 9-CVM loss of communication 30
Diagnose and troubleshoot DTC 9 30
DTC 11-High coolant inlet temperature 33
Diagnose and troubleshoot DTC 11 33
DTC 12-High coolant inlet temperature 38
Diagnose and troubleshoot DTC 12 38
DTC 14-High coolant outlet temperature 42
Diagnose and troubleshoot DTC 14 42
DTC 15-High coolant outlet temperature 47
Diagnose and troubleshoot DTC 15 47
DTC 16-High coolant outlet temperature 51
Diagnose and troubleshoot DTC 16 51
DTC 17-High cathode inlet temperature 55
Diagnose and troubleshoot DTC 17 55
DTC 18-High anode outlet pressure 57
Diagnose and troubleshoot DTC 18 57
DTC 19-High anode outlet pressure 58
Diagnose and troubleshoot DTC 19 58
DTC 20-Low anode outlet pressure 60
Diagnose and troubleshoot DTC 20 60
DTC 21-Low anode outlet pressure 63
Diagnose and troubleshoot DTC 21 63
DTC 22-High cathode inlet pressure 66
Diagnose and troubleshoot DTC 22 66
DTC 25-Minimum cell voltage 67
Diagnose and troubleshoot DTC 25 67
DTC 26-Minimum cell voltage 70
Diagnose and troubleshoot DTC 26 70
DTC 27-Minimum cell voltage 73
Diagnose and troubleshoot DTC 27 73
DTC 28-Low anode purge (fuel cell systems S/N A2D1S01501R or S/N A2D2S01501R and after) 75
Diagnose and troubleshoot DTC 28 75
DTC 32-Low stack bypass airflow (fuel cell systems up to and including S/N A2D1S01500R or S/N A2D2S01500R) 76
Diagnose and troubleshoot DTC 32 76
DTC 33-Low anode outlet pressure at start-up 79
Diagnose and troubleshoot DTC 33 79
DTC 34-Low anode supply pressure 82
Diagnose and troubleshoot DTC 34 82
DTC 35-Minimum cell voltage at start-up 85
Diagnose and troubleshoot DTC 35 85
DTC 36-Low cathode air flow 88
Diagnose and troubleshoot DTC 36 88
DTC 38-Minimum cell voltage at shutdown 90
Diagnose and troubleshoot DTC 38 90
DTC 40-Low cell voltage at OCV 92
Diagnose and troubleshoot DTC 40 92
DTC 41-Minimum cell voltage at shutdown 94
Diagnose and troubleshoot DTC 41 94
DTC 42-High average cell voltage at shutdown 95
Diagnose and troubleshoot DTC 42 95
DTC 52-High coolant inlet temperature 96
Diagnose and troubleshoot DTC 52 96
DTC 53-High coolant delta temperature 100
Diagnose and troubleshoot DTC 53 100
DTC 54-Low cathode inlet dew-point 104
Diagnose and troubleshoot DTC 54 104
DTC 55-Low cathode inlet pressure 105
Diagnose and troubleshoot DTC 55 105
DTC 62-Low anode supply pressure 109
Diagnose and troubleshoot DTC 62 109
DTC 63-High anode supply pressure 112
Diagnose and troubleshoot DTC 63 112
DTC 71-Not tracking humidifier bypass valve (fuel cell systems S/N A2D1S01501R or S/N A2D2S01501R and after) 115
Diagnose and troubleshoot DTC 71 115
DTC 72-Not tracking radiator bypass valve (fuel cell systems S/N A2D1S01501R or S/N A2D2S01501R and after) 116
Diagnose and troubleshoot DTC 72 116
DTC 75-Very low state of charge 117
Diagnose and troubleshoot DTC 75 117
DTC 76-Air inlet temperature out of range 118
Diagnose and troubleshoot DTC 76 118
DTC 77-High air inlet temperature 120
Diagnose and troubleshoot DTC 77 120
DTC 78-Ultracapacitors current out of range 122
Diagnose and troubleshoot DTC 78 122
DTC 79-H2 tank pressure out of range 123
Diagnose and troubleshoot DTC 79 123
DTC 80-Low H2 tank pressure 125
Diagnose and troubleshoot DTC 80 125
DTC 81-Low H2 tank pressure 126
Diagnose and troubleshoot DTC 81 126
DTC 82-Low H2 tank pressure 127
Diagnose and troubleshoot DTC 82 127
DTC 84-High water tank level 128
Diagnose and troubleshoot DTC 84 128
DTC 85-High water tank level 129
Diagnose and troubleshoot DTC 85 129
DTC 86-Low motor controller speed 130
Diagnose and troubleshoot DTC 86 130
DTC 88-Motor controller error status 131
Diagnose and troubleshoot DTC 88 131
DTC 89-Motor controller warning status 132
Diagnose and troubleshoot DTC 89 132
DTC 90-DC/DC Loss of communication 133
Diagnose and troubleshoot DTC 90 133
DTC 91-DC/DC error status 135
Diagnose and troubleshoot DTC 91 135
DTC 92-DC/DC warning status 136
Diagnose and troubleshoot DTC 92 136
DTC 94-Fuel cell back current 137
Diagnose and troubleshoot DTC 94 137
DTC 95-Anode over-pressure 139
Diagnose and troubleshoot DTC 95 139
DTC 96-High state of charge 141
Diagnose and troubleshoot DTC 96 141
DTC 97-System switch-off relay 142
Diagnose and troubleshoot DTC 97 142
DTC 98-Low/High state of charge 143
Diagnose and troubleshoot DTC 98 143
DTC 99-Low/High state of charge 144
Diagnose and troubleshoot DTC 99 144
DTC 100-5VDC supply of VSM Faulted 145
Diagnose and troubleshoot DTC 100 145
DTC 101-12VDC supply of VSM faulted 146
Diagnose and troubleshoot DTC 101 146
DTC 102-Stand-by mode timed out 147
Diagnose and troubleshoot DTC 102 147
DTC 103-EWS loss of integrity (fuel cell systems S/N A2D1S01500R or S/N A2D2S01500R and after) 148
Diagnose and troubleshoot DTC 103 148
Tables 149
Fault code quick reference 150
Principles of operation 161
Nuvera® Fuel Cell System operating state flow logic 161
PreStart 161
Ready 161
Off 161
Anode Start 162
Dilution Start 162
Anode Purge 162
Bleed Connect 163
Cathode Purge 163
Run 163
Standby SoC 164
Standby 164
Start button 165
Stop button 165
Faults 166
Parts identification and wiring diagrams 167
Legend 167
Parts identification diagram 168
Wiring diagrams (fuel cell systems up to and including S/N A2D1S01500R or S/N A2D2S01500R) 170
Wiring diagrams (fuel cell systems S/N A2D1S01501R or S/N A2D2S01501R and after) 179