Low output voltage - Powerware 9120 UPS System

Belkin F5C400 as it is likely proprietary information, and detailed circuit diagrams for specific products are generally not publicly available.
However, if you are experiencing a low voltage output issue with your Belkin F5C400, here are some general troubleshooting steps you can take:

1. Check the Input Voltage:
   • Ensure that the input voltage matches the rated input voltage of the Belkin F5C400. If the input voltage is too low, it may affect the output voltage.
2. Inspect the Power Source:
   • Check the power source and make sure it is stable. Fluctuations in the power source can impact the output voltage.
3. Inspect the Output Connections:
   • Ensure that all devices connected to the Belkin F5C400 are functioning correctly. Faulty devices or incorrect connections may lead to low voltage issues.
4. Reset or Replace the Belkin F5C400:
   • Try resetting the Belkin F5C400 by unplugging it, waiting for a few minutes, and then plugging it back in. If the issue persists, consider replacing the unit.
5. Contact Belkin Support:
   • If the problem persists and your device is still under warranty, consider reaching out to Belkin's customer support for assistance. They may provide guidance or offer a replacement if necessary.

Remember, dealing with electrical devices requires caution, and if you are not comfortable troubleshooting the issue, it's advisable to seek assistance from a qualified technician or contact the manufacturer's support team for guidance. Additionally, opening the device or attempting repairs on your own may void any existing warranty.

There are two types of diagnostic trouble codes (DTCs), current and historic. The Check Engine Lamp will not indicate the existence of historic trouble codes.

1 Current 53 ECM flash error

2 Historic 53 ECM flash error

3 Current 54 ECM EEPROM error

4 Historic 54 ECM EEPROM error

5 Current 63 ECM serial data low

6 Current 63 ECM serial data open/high

7 Current 63 TSSM serial data low

8 Current 63 TSSM serial data open/high

9 Current 61 Loss of TSM/TSSM serial data

10 Current 14 Loss of all ECM serial data (state of health)10 24 Loss of vehicle speed10 33 Loss of vehicle inhibit motion10 43 Loss of powertrain security status

11 Current 33 System relay contacts open

12 Current 33 System relay coil high/shorted

13 Current 33 System relay coil open/low

14 Current 33 System relay contacts closed

15 Current 99 Incorrect password

16 Current 99 Missing password

17 Current 41 CKP sensor intermittent

18 Current 41 CKP sensor synch error

19 Current 11 TP sensor open/low

20 Current 11 TP sensor high

21 Current 12 MAP sensor open/low

22 Current 12 MAP sensor high

23 Current 14 ET sensor voltage low

24 Current 14 ET sensor open/high

25 Current 15 IAT sensor voltage low

26 Current 15 IAT sensor open/high

27 Current 24 Front ignition coil open/low

28 Current 25 Rear ignition coil open/low

29 Current 24 Front ignition coil high/shorted

30 Current 25 Rear ignition coil high/shorted

31 Current 24 Front cylinder combustion intermittent

32 Current 25 Rear cylinder combustion intermittent

33 Current 23 Front injector open/low

34 Current 32 Rear injector open/low

35 Current 23 Front injector high

36 Current 32 Rear injector high

37 Current 16 Battery voltage low

38 Current 16 Battery voltage high

39 Current 43 VSS sensor low

40 Current 43 VSS sensor high

41 Current N/A (no speedo code for this) Check engine light open/low NO CHECK ENGINE LAMP AT KEY ON or CHECK ENGINE LAMP ON CONTINUOUSLY

42 Current N/A (no speedo code for this) Check engine light high NO CHECK ENGINE LAMP AT KEY ON

43 Current 35 Tachometer low

44 Current 35 Tachometer high

45 Current 25 Rear cylinder no combustion

46 Current 24 Front cylinder no combustion

47 Current 34 Loss of idle speed control IDLE AIR CONTROL

48 Current 35 Accelerometer fault

49 Current 34 Starter output high

50 Current 25 Ignition enable output high

51 Current 21 Left turn output fault

52 Current 22 Right turn output fault

53 Current 11 Battery voltage high

54 Current 31 Alarm output low

55 Current 32 Alarm output high

56 Current 41 Ignition switch open/low

57 Historic 63 ECM serial data low

58 Historic 63 ECM serial data open/high

59 Historic 63 TSSM serial data low

60 Historic 63 TSSM serial data open/high

61 Historic 61 Loss of TSM/TSSM serial data

62 Historic 14 Loss of all ECM serial data (state of health)

63 Historic 33 System relay contacts open

64 Historic 33 System relay coil high/shorted

65 Historic 33 System relay coil open/low

66 Historic 33 System relay contacts closed

67 Historic 99 Incorrect password

68 Historic 99 Missing password

69 Historic 41 CKP sensor intermittent

70 Historic 41 CKP sensor synch error

71 Historic 11 TP sensor open/low

72 Historic 11 TP sensor high

73 Historic 12 MAP sensor open/low

74 Historic 12 MAP sensor high

75 Historic 14 ET sensor voltage low

76 Historic 14 ET sensor open/high

77 Historic 15 IAT sensor voltage low

78 Historic 15 IAT sensor open/high

79 Historic 24 Front ignition coil open/low

80 Historic 25 Rear ignition coil open/low

81 Historic 24 Front ignition coil high/shorted

82 Historic 25 Rear ignition coil high/shorted

83 Historic 24 Front cylinder combustion intermittent

84 Historic 25 Rear cylinder combustion intermittent

85 Historic 23 Front injector open/low

86 Historic 32 Rear injector open/low

87 Historic 23 Front injector high

88 Historic 32 Rear injector high

89 Historic 16 Battery voltage low

90 Historic 16 Battery voltage high

91 Historic 43 VSS sensor low

92 Historic 43 VSS sensor high

93 Historic N/A Check engine light open/low NO CHECK ENGINE LAMP AT KEY ON or CHECK ENGINE LAMP ON CONTINUOUSLY

94 Historic N/A Check engine light high NO CHECK ENGINE LAMP AT KEY ON

95 Historic 35 Tachometer low

96 Historic 35 Tachometer high

97 Historic 25 Rear cylinder no combustion

98 Historic 24 Front cylinder no combustion

99 Historic 34 Loss of idle speed control

100 Historic 35 Accelerometer fault

101 Historic 34 Starter output high

102 Historic 25 Ignition enable output high

103 Historic 21 Left turn output fault

104 Historic 22 Right turn output fault

105 Historic 11 Battery voltage high

106 Historic 31 Alarm output low

107 Historic 32 Alarm output high

108 Historic 41 Ignition switch open/low

P0107 Map Sensor Open/Low
P0108 Map Sensor High
P0117 ET Sensor Low
P0118 ET Sensor High
P0112I AT Voltage Low
P0113I AT Voltage Open/High
P0120 TPS1 Range Error
P0220 TPS2 Range Error
P0122 TPS1 Low
P0123 TPS2 High/Open
P0131 Front Oxygen Sensor Low
P0132 Front Oxygen Sensor High
P0151 Rear Oxygen Sensor Low
P0152 Rear Oxygen Sensor High
P0154 Rear Oxygen Sensor Inactive.
P0222 TPS2 Low
P0223 TPS2 High/Open
P0261 Front Injector Open/Low
P0263 Rear Injector Open/Low
P0262 Front Injector High
P0264 Rear Injector High
P0373 CKP Sensor Intermittent
P0374 CKP Sensor Synch Error
P0444 Purge Solenoid Open/Low
P0445 Purge Solenoid High
P0562 Battery Voltage Low
P0563 Battery Voltage High
P0501 VSS Sensor Low
P0502 VSS Sensor High/Open
P0572 Brake Switch Low
P0577 Cruise Control Input High
P0603 ECM EEPROM Memory Error
P0605 ECM FLASH Memory Error
P06415 V+Vref 1 Out Of Range
P06515 V+Vref 2 Out Of Range
P1001 System Relay Coil Open/Low
P1002 System Relay Coil High/Shorted
P1003 System relay contacts open
P1004 System Relay Contacts Closed
P1009 Incorrect Password
P1010 Missing Password
P1270 TGS Validation Error
P1351 Front Ignition Coil Driver Open/Low
P1352 Front Ignition Coil Driver High/Shorted
P1353 Front Cylinder No Combustion
P1354 Rear Ignition Coil Driver Open/Low
P1355 Rear Ignition Coil Driver High/Shorted
P1356 Rear Cylinder No Combustion
P1357 Front Cylinder Combustion Intermittent
P1358 Rear Cylinder Combustion Intermittent
P1475 Exhaust Actuation Position Error
P1477 Exhaust Actuator Open/Low
P1478 Exhaust Actuator Shorted/High
P1501 Jiffy Stand Sensor Low
P1502 Jiffy Stand Sensor High P1510 EFI Limited
Performance Mode
P1511 EFI Power Management Mode
P1512 EFI Forced Idle Mode
P1514 Air Flow Fault
P1600 EFI Module Processor Internal Error
P2100 EFI Motor Circuit Open
P2101 EFI Motor Circuit Range Performance (Actuation
Error)
P2102 EFI Motor Circuit Low
P2103 EFI Motor Circuit High
P2105 EFI Forced engine shutdown
P2107 EFI Module Processor Internal Fault
P2119 EFI Motor Throttle Body Range Performance
P2122 TGS1 Low/Open
P2123 TGS1 High
P2127 TGS2 Low/Open
P2128 TGS2 High
P2135 TPS Correlation Error
P2138 TGS Correlation Error (Twist grip sensor)
P2176 EFI Closed Position Not Learned
U Codes
U1016 Loss of ECM ****** Data
U1064 Loss of TSM/FSFM ****** Data to ECM
U1097 Loss of Speedometer ****** Data to ECM
U1255 ****** Data Error
U1300 ****** Data Low
U1301 ****** Data High
Harley Davidson 2008 DTC Code Reading (draft)
Harley Davidson DTC Codes - Unofficial Guide Page 3
B Codes
B0563 Battery Voltage High.
B1121(TSM) Left Turn Output Fault
B1121(HFSM) Left Turn Output Open
B1122(TSM) Right Turn Output Fault
B1122(HFSM) Right Turn Output Open
B1123(HFSM) Left Turn Output Short to Ground
B1124(HFSM) Right Turn Output Short to Ground
B1125(HFSM) Left Turn Output Short to Battery
B1126(HFSM) Right Turn Output Short to Battery
B1131(HFSM) Alarm Output Low
B1132(HFSM) Alarm Output High
B1134 Starter Output High
B1135 Accelerometer Failed
B1136(HFSM) Accelerometer Tip Test Error
B1141(TSM) Ignition Switch Low/Open
B1141(HFSM) Ignition Switch Low/Open
B1142 Smart Security System Internal Fault
B1143(HFSM) Security Antenna Short to Ground
B1144(HFSM) Security Antenna Short to Battery
B1145(HFSM) Security Antenna Open
B1151 Bank Angle Sensor(BAS) Short to Ground
B1152 Bank Angle Sensor(BAS) Short to Battery
B1153 Bank Angle Sensor(BAS) High
B1154 Clutch Switch Input Short to Ground
B1155 Neutral Switch Input Short to Battery

Under voltage would be low output voltage from the generator power head. Verify that the motor is funning at full speed to check the output voltage.

Low battery is telling you that the starting battery has low voltage. This could be because the battery is bad or that the alternator is not charging the battery

if there is output but the voltage is low check the voltage regulator

The battery warning light comes on because the output voltage of the engine alternator (dynamo) has fallen below the voltage of the battery, this turns the alternator into a ground and the light for the battery turns on in the dash. The other electrical problems are likely symptoms of the low system voltage problem caused by the low alternator output voltage.

P0107 Map Sensor Open/Low
P0108 Map Sensor High
P0117 ET Sensor Low
P0118 ET Sensor High
P0112I AT Voltage Low
P0113I AT Voltage Open/High
P0120 TPS1 Range Error
P0220 TPS2 Range Error
P0122 TPS1 Low
P0123 TPS2 High/Open
P0131 Front Oxygen Sensor Low
P0132 Front Oxygen Sensor High
P0151 Rear Oxygen Sensor Low
P0152 Rear Oxygen Sensor High
P0154 Rear Oxygen Sensor Inactive.
P0222 TPS2 Low
P0223 TPS2 High/Open
P0261 Front Injector Open/Low
P0263 Rear Injector Open/Low
P0262 Front Injector High
P0264 Rear Injector High
P0373 CKP Sensor Intermittent
P0374 CKP Sensor Synch Error
P0444 Purge Solenoid Open/Low
P0445 Purge Solenoid High
P0562 Battery Voltage Low
P0563 Battery Voltage High
P0501 VSS Sensor Low
P0502 VSS Sensor High/Open
P0572 Brake Switch Low
P0577 Cruise Control Input High
P0603 ECM EEPROM Memory Error
P0605 ECM FLASH Memory Error
P06415 V+Vref 1 Out Of Range
P06515 V+Vref 2 Out Of Range
P1001 System Relay Coil Open/Low
P1002 System Relay Coil High/Shorted
P1003 System relay contacts open
P1004 System Relay Contacts Closed
P1009 Incorrect Password
P1010 Missing Password
P1270 TGS Validation Error
P1351 Front Ignition Coil Driver Open/Low
P1352 Front Ignition Coil Driver High/Shorted
P1353 Front Cylinder No Combustion
P1354 Rear Ignition Coil Driver Open/Low
P1355 Rear Ignition Coil Driver High/Shorted
P1356 Rear Cylinder No Combustion
P1357 Front Cylinder Combustion Intermittent
P1358 Rear Cylinder Combustion Intermittent
P1475 Exhaust Actuation Position Error
P1477 Exhaust Actuator Open/Low
P1478 Exhaust Actuator Shorted/High
P1501 Jiffy Stand Sensor Low
P1502 Jiffy Stand Sensor High P1510 EFI Limited
Performance Mode
P1511 EFI Power Management Mode
P1512 EFI Forced Idle Mode
P1514 Air Flow Fault
P1600 EFI Module Processor Internal Error
P2100 EFI Motor Circuit Open
P2101 EFI Motor Circuit Range Performance (Actuation
Error)
P2102 EFI Motor Circuit Low
P2103 EFI Motor Circuit High
P2105 EFI Forced engine shutdown
P2107 EFI Module Processor Internal Fault
P2119 EFI Motor Throttle Body Range Performance
P2122 TGS1 Low/Open
P2123 TGS1 High
P2127 TGS2 Low/Open
P2128 TGS2 High
P2135 TPS Correlation Error
P2138 TGS Correlation Error (Twist grip sensor)
P2176 EFI Closed Position Not Learned
U Codes
U1016 Loss of ECM Serial Data
U1064 Loss of TSM/FSFM Serial Data to ECM
U1097 Loss of Speedometer Serial Data to ECM
U1255 Serial Data Error
U1300 Serial Data Low
U1301 Serial Data High
Harley Davidson 2008 DTC Code Reading (draft)
Harley Davidson DTC Codes - Unofficial Guide Page 3
B Codes
B0563 Battery Voltage High.
B1121(TSM) Left Turn Output Fault
B1121(HFSM) Left Turn Output Open
B1122(TSM) Right Turn Output Fault
B1122(HFSM) Right Turn Output Open
B1123(HFSM) Left Turn Output Short to Ground
B1124(HFSM) Right Turn Output Short to Ground
B1125(HFSM) Left Turn Output Short to Battery
B1126(HFSM) Right Turn Output Short to Battery
B1131(HFSM) Alarm Output Low
B1132(HFSM) Alarm Output High
B1134 Starter Output High
B1135 Accelerometer Failed
B1136(HFSM) Accelerometer Tip Test Error
B1141(TSM) Ignition Switch Low/Open
B1141(HFSM) Ignition Switch Low/Open
B1142 Smart Security System Internal Fault
B1143(HFSM) Security Antenna Short to Ground
B1144(HFSM) Security Antenna Short to Battery
B1145(HFSM) Security Antenna Open
B1151 Bank Angle Sensor(BAS) Short to Ground
B1152 Bank Angle Sensor(BAS) Short to Battery
B1153 Bank Angle Sensor(BAS) High
B1154 Clutch Switch Input Short to Ground
B1155 Neutral Switch Input Short to Battery

It could just be a bad signal from the MAP sensor or a poor connection at the sensor. Or a bad MAP sensor itself. Maybe the vacuum line is off or broken.

Manifold Absolute Pressure (MAP) sensor measures the changes in the intake manifold pressure which result from engine load and speed changes, and converts this measurement into a voltage output.

A closed throttle on when the engine is decelerating would produce a relatively low MAP output, while a wide open throttle would produce a high output. Manifold absolute pressure is the opposite of what you would measure on a vacuum gage. When manifold pressure is high, vacuum is low. The MAP sensor is also used to measure barometric pressure under certain conditions, which allows the PCM to automatically adjust for different altitudes.

The PCM sends a 5 volt reference signal to the MAP sensor. As the manifold pressure changes, the electrical resistance of the sensor also changes. By monitoring the sensor output voltage, the PCM can determine the manifold pressure. A higher pressure, low vacuum (high voltage) requires more fuel, while a lower pressure, higher vacuum (low voltage) requires less fuel.

A high or low voltage fault in the MAP sensor circuit should set a DTC P0107 or DTC P0108. If the MAP sensor sends an intermittent zero voltage signal to the PCM, a DTC P0106 will set.

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