Relay - Test (Start Relay) - Perkins 854F-E34T Troubleshooting Manual

174
Circuit Tests
Relay - Test
(Start Relay)
This procedure covers the following diagnostic code:
Table 87
J1939 Code
677-3 Engine Starter Motor Relay : Voltage Above Normal
677-5 Engine Starter Motor Relay : Current Below Normal
677-6 Engine Starter Motor Relay : Current Above Normal
1041-2 Start Signal Indicator : Erratic, Intermittent, or Incorrect
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i05939117
Diagnostic Trouble Codes for the Starting Motor Relay
Description Notes
The Electronic Control Module (ECM) detects the following conditions:
A short circuit to battery in the circuit for the starting motor relay while
no start request is detected.
The battery voltage is between 9.5 and 16 VDC.
The warning lamp will come on.
The start relay circuit will be disabled.
The ECM detects the following conditions:
A low current condition on the circuit for the starting motor relay while
no start request is detected.
The battery voltage is between 9.5 and 16 VDC.
The warning lamp will come on.
The start relay circuit will be disabled.
The ECM detects the following conditions:
A high current condition (short circuit) in the circuit for the starting motor
relay.
The battery voltage is between 9.5 and 16 VDC.
If equipped, the warning lamp will come on. The engine may be
derated.
The start relay circuit will be disabled.
This diagnostic code indicates that the start signal has remained active
for too long.
This condition may be caused by the keyswitch being held in the
START position for too long.
The warning lamp will come on.
UENR0612