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Chery T11 Service Manual Electric Injection System 53
Failure Code: P0480-2 Open circuit of radiator low-speed fan relay drive circuit or short circuit to earth Set emergency control scheme: Switch on the failure lamp till the failure disappears increases to 98℃ and then the high-speed fan activates Fan operates normally (short circuit to earth) Connection terminal:
MT 20U Low-speed Fan Relay Normal Measurement Signal Battery:
\ Refer to Electrical System Description 12V Relay drive:
67 Refer to Electrical System Description 0V (Operating) and 12V (Stop) Condition for Determination Possible Reason Actions Failure duration > 3 s 1) Unreliable connection of the connecting parts 2) Short circuit of relay drive circuit to the negative electrode of power supply 3) Open circuit of relay drive circuit 4) Open circuit with the battery connection circuit 5) Relay damaged 6) ECM failure 1) Connect again
2) Repair harness
3) Repair harness 4) Repair harness
5) Replace relay 6) Replace ECM
Failure Code: P0481-1 Short circuit of radiator high-speed fan relay drive circuit to the positive electrode of power supply Set emergency control scheme: Switch on the failure lamp till the failure disappears Connection terminal:
MT 20U High-speed Fan Relay Normal Measurement Signal Battery:
\ Refer to Electrical System Description 12V Relay drive:
50 Refer to Electrical System Description 0V (Operating) and 12V (Stop) Condition for Determination Possible Reason Actions Failure duration > 3 s 1) Short circuit of relay drive circuit to the positive electrode of power supply 2) Relay damaged 3) ECM failure 1) Repair harness
2) Replace relay 3) Replace ECM
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