Cooling Fan Inoperative 2.2L (L61)
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Engine Cooling Schematics Connector End View Reference: Cooling System Connector End Views DEFINITION: The engine cooling fan motor does not operate. | |||
1 | Did you perform A Diagnostic System Check-Engine Cooling? | Go to Step 2 | |
2 |
Does the engine cooling fan turn ON and OFF with each command? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Does the test lamp illuminate? | Go to Step 4 | Go to Step 7 |
4 | Connect a 20 A fused jumper wire between the battery positive voltage circuit of the cooling fan relay and the cooling fan motor supply voltage circuit of the cooling fan relay. Does the cooling fan operate? | Go to Step 10 | Go to Step 5 |
5 |
Does the test lamp illuminate? | Go to Step 6 | Go to Step 8 |
6 | Probe the harness connector of the cooling fan motor with a test lamp connected between the cooling fan motor supply voltage circuit and the ground circuit of the cooling fan motor. Does the test lamp illuminate? | Go to Step 11 | Go to Step 9 |
7 | Repair the battery positive circuit of the cooling fan relay. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 14 | -- |
8 | Repair the supply voltage circuit of the cooling fan motor. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 14 | -- |
9 | Repair the ground circuit of the cooling fan motor. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 14 | -- |
10 | Inspect for poor connections at the cooling fan relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 12 |
11 | Inspect for poor connections at the harness connector of the cooling fan motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 13 |
12 | Replace the cooling fan relay. Did you complete the repair? | Go to Step 14 | -- |
13 | Replace the cooling fan motor. Refer to Cooling Fan and Shroud Replacement . Did you complete the repair? | Go to Step 14 | -- |
14 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
Cooling Fan Inoperative 2.0L (LSJ)
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference : Engine Cooling Schematics Connector End View Reference: Cooling System Connector End Views DEFINITION: One or both cooling fan motors are inoperative in either high, low, or both speeds. | |||
1 | Did you perform the Diagnostic System Check - Engine Cooling? | Go to Step 2 | |
2 |
Does the low speed engine cooling fan turn ON? | Go to Step 3 | Go to Step 4 |
3 |
Important:: A 3 second delay occurs before the powertrain control module (PCM) changes the cooling fan speed. With a scan tool, command the Fans High Speed ON. Does the high speed engine cooling fans turn ON? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 11 |
4 |
Important: Do NOT remove the 20 A fused jumper wire connected during this step. Use a second 20 A fused jumper wire while performing the following steps. Do both cooling fans operate in low speed? | Go to Step 13 | Go to Step 5 |
5 |
Do both cooling fans operate in low speed? | Go to Step 14 | Go to Step 6 |
6 | Reconnect the second 20-A fused jumper between the battery positive voltage circuit of the cooling fan S/P relay and the cooling fan motor supply voltage circuit of the cooling fan S/P relay. Does the right cooling fan operate in high speed? | Go to Step 9 | Go to Step 7 |
7 |
Does the left cooling fan operate in high speed? | Go to Step 16 | Go to Step 8 |
8 | Reconnect the second 20-Amp fused jumper wire from the cooling fan motor supply voltage circuit of the right cooling fan electrical connector to a good ground. Does the left cooling fan operate in high speed? | Go to Step 20 | Go to Step 21 |
9 |
Does the right cooling fan operate in high speed? | Go to Step 17 | Go to Step 10 |
10 | Reconnect the second 20-Amp fused jumper wire from battery positive voltage to the left cooling fan low reference circuit of the of the left cooling fan electrical connector. Does the right cooling fan operate in high speed? | Go to Step 18 | Go to Step 22 |
11 | Does the right cooling fan operate in high speed? | Go to Step 12 | Go to Step 15 |
12 |
Does the left cooling fan operate properly in high speed? | Go to Step 14 | Go to Step 19 |
13 | Inspect for poor connections at the cooling fan 1 relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 28 | Go to Step 23 |
14 | Inspect for poor connections at the cooling fan S/P relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 28 | Go to Step 24 |
15 | Inspect for poor connections at the cooling fan 2 relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 28 | Go to Step 25 |
16 | Inspect for poor connections at the harness connector of the right cooling fan. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 28 | Go to Step 26 |
17 | Inspect for poor connections at the harness connector of the left cooling fan. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 28 | Go to Step 27 |
18 | Repair the left cooling fan motor supply voltage circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 28 | -- |
19 | Repair the left cooling fan motor ground circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 28 | -- |
20 | Repair the right cooling fan motor ground circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 28 | -- |
21 | Repair the right cooling fan motor supply voltage circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 28 | -- |
22 | Repair the left cooling fan low reference circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 28 | -- |
23 | Replace the cooling fan 1 relay. Did you complete the replacement? | Go to Step 28 | -- |
24 | Replace the cooling fan S/P relay. Did you complete the replacement? | Go to Step 28 | -- |
25 | Replace the cooling fan 2 relay. Did you complete the replacement? | Go to Step 28 | -- |
26 | Replace the right cooling fan. Refer to Cooling Fan and Shroud Replacement . Did you complete the replacement? | Go to Step 28 | -- |
27 | Replace the left cooling fan. Refer to Cooling Fan and Shroud Replacement . Did you complete the replacement? | Go to Step 28 | -- |
28 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
