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DRIVELINE CONTROL SYSTEM 4B–13 Diagnosis of The Faults Based on the Diagnosis charts are shown on below. If troubles can Fault on Switching from 2WD to 4WD 1. In case that 4WD indicator's blinking changes from 2Hz to 4Hz after Solution 1 is carried out. 2. In case that 4WD indicator does not blink nor light, when switching from 2WD to 4WD. Step Action Yes No 1 Is ignition turned on? Go to Step 2 Turn on the ignition and trace this chart from start. 2 Does the indicator light during two seconds initialization after Go to Step 3 Burning out of indicator lamp or disconnection of harness wire. Trace this chart from the start after repair or replace. 3 Is the 4WD switch turned from 2WD to 4WD? Short-circuit (body short) on harness of the 4WD switch. Fault of the 4WD switch closed condition). Trace this chart from the start after repair or replace. Push the 4WD switch to 4WD. |