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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System >> Diagnostic Information and Procedures >> DTC P0480, P0481, P0691, P0692, P0693 or P0694: Cooling Fan Relays (LUW, LUV or LWE) >> Diagnostic Fault Information

Diagnostic Fault Information

KR20C Cooling Fan Low Speed Relay

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Relay Coil Ignition P0480, P0691 2 - -
Relay Switch B+ 1 2 - -
Relay Coil Control 3 2 4 -
Relay Controlled Output 1 2 3 -
  1. Low and medium speed fan inoperative without a DTC.
  2. Low speed fan inoperative without a DTC.
  3. Low speed fan always ON without a DTC.
  4. Low and high speed fan inoperative without a DTC.
KR20D Cooling Fan High Speed Relay

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Relay Coil Ignition P0480, P0691 2 1 -
Relay Switch B+ 2 2 - -
Relay Control P0481 or P0693 P0481 P0481 or P0694 -
Relay Controlled Output 2 2 3 -
  1. Medium speed fan replaced by high speed fan without a DTC.
  2. High speed fan inoperative without a DTC.
  3. High speed fan always ON without a DTC.
KR20E Cooling Fan Speed Control Relay

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Relay Coil Ignition P0480, P0691 1 - -
Relay Switch Ignition P0480, P0691 1 - -
Relay Coil Control 2 1 3 -
Relay Controlled Output 1 1 4 -
  1. High speed fan inoperative without a DTC.
  2. Low speed fan always ON without a DTC.
  3. Low and high speed fan inoperative without a DTC.
  4. Medium speed fan inoperative without a DTC.
KR20F Cooling Fan Relay

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Relay Coil Ignition P0480, P0691 P0480 - -
Relay Switch Ignition 1 2 - -
Relay Control P0480 or P0691 P0480 P0480 or P0692 -
Relay Controlled Output - 2 - -
  1. Low speed fan always ON without a DTC.
  2. Low speed fan and high speed fan inoperative.
KR20P Cooling Fan Medium Speed Relay

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Relay Coil Ignition - P0481 - -
Relay Switch B+ 1 2 - -
Relay Control P0481 or P0693 P0481 P0481 or P0694 -
Relay Controlled Output 1 2 3 -
  1. Low and medium speed fan inoperative without a DTC.
  2. Medium speed fan inoperative without a DTC.
  3. Medium speed fan always ON without a DTC.
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