Volvo TAD1240GE Operator's Manual page 54

Diagnostic function
Code 5.4
Cause: Pre-heating relay.
Response: Pre-heating can not be activated.
Corrective action:
•
Check the wiring to the entrance to the relay.
•
Check that the relay is unbroken.
Code 5.8
Cause Oil temperature is too high.
Response: The engine limits the available power output
(if this protective feature has not been disabled by the pa-
rameter setting tool). The alarm indicator lights up.
Corrective action:
•
Check the oil level.
•
Check coolant temperature.
•
Check oil system thermostat.
•
Check that the oil sensor is functional.
Code 6.1
Cause: Coolant temperature is too high.
Response: TWD1240VE: The engine shuts down (if this
protective feature has not been disabled by the parameter
setting tool). The alarm indicator lights up.
TAD1240-42GE: The engine limits the available power
output (if this protective feature has not been disabled by
the parameter setting tool). The alarm indicator lights up.
Corrective action:
•
Check coolant level.
•
Check the radiator (cleanliness).
•
Check for air in the coolant system.
•
Check the pressure cap.
•
Check the coolant temperature sensor.
•
Check the thermostat function.
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Code 6.2
Cause Intake air temperature is too high.
Response: Engine output is limited to 50% (if this protecti-
ve feature has not been disabled by the parameter setting
tool).
Corrective action:
•
Check coolant level.
•
Check the intercooler/aftercooler (cleanliness).
•
Check the intake air temperature sensor.
•
Check the thermostat function.
Code 6.4
Cause Datalink (CAN) error, CIU.
Response: Instruments and lights no longer function
Corrective action:
•
Check the 8-pole connector.
•
Check the 8-pole wiring between the CIU and the
EMS)
engine control unit (
Code 6.5
Cause Datalink (CAN) error, EMS.
Response:
Corrective action:
•
Check the 8-pole connector.
•
Check the 8-pole wiring between the CIU and the
engine control unit.
.