(e)
Read control system DTC code again to confirm that the
system has no DTC code.
No
Intermittent Fault. Refer to
Yes
Step 8
Diagnostic completed.
5. Repair Instructions:
Replace EVAP solenoid valve. Refer to
Canister Solenoid Valve Replacement
2.12.7.40 DTC P0480 P0481
1. DTC Descriptor:
DTC
P0480
Low-Speed Fan Malfunction
DTC
P0481
High-Speed Fan Malfunction
High or low speed cooling fan relay coil power is provided by ECM controlled main relay. ECM controls the relay via ECM harness
connector EO36 terminal No.66 and 67. ECM has an internal driver circuit that controls the relay coil ground. Drive circuit is equipped
with a feedback circuit to ECM. ECM monitors the feedback voltage control circuit to determine whether the control circuit is open,
short to ground or short to ground.
2. Conditions For Setting DTC and The Fault Location:
DTC Code
DTC Detection Strategy
Conditions For Setting The DTC
(Control Strategy)
Fault Locations
P0480
Hardware Circuit Checks
Under idle operating condition, when
the fan is working. The fan control is
short to power supply, DTC code set.
1. Relay Circuit
2. Relay
3. ECM
4. Cooling Fan
P0481
Hardware Circuit Checks
Under idle operating condition, when
the fan is working. The fan control is
short to power supply, DTC code set.
3. Schematic:
4. Diagnostic Steps:
5. Repair Instructions:
Replace the cooling fan. Refer to
2.12.7.41 DTC P0502
1. DTC Descriptor:
DTC
P0502
Vehicle Speed Sensor No Signal
2-746
Control System JL4G15-D
Engine
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
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