Lanos S Hatchback L4-1.6L DOHC D-TEC MFI (1999)
Steps 43 - 49
Test Description
The number(s) below refer to step(s) on the diagnostic table.
4. This step, along with step 5, checks for the ability of the PCM/ECM to operate the cooling tans.
8. This step, along with step 9, checks for the ability of the PCM/ECM to operate the cooling fans In response to A/C pressure readings.
16. After confirming battery voltage and the PCM/ECM supplying a ground to the coil side of the cooling fan relay A, by jumpering connector
terminals 30 and 87 it will be determined if the relay is at fault or a wiring problem is present.
31. This step checks for the presence of battery voltage to the main cooling fan when the A/C is on. If battery voltage is present and the cooling fans
are not operating, the problem is in the ground side of the cooling fan circuit.
37. By directly grounding the PCM/ECM connector terminals C13 and C12, the main and auxiliary cooling fans should run at high speed.
