4-88 FI SYSTEM DIAGNOSIS Step 5 5 1) If the position sensor output voltage is 0.5 V and less at fully close position, adjust the output voltage to specified by turn- ing out the No. 1 cable adjuster 1. 2) Repeat the above procedure (Step 4) until the out put voltage becomes specified value. (If C46/P1657 code is indicated after adjusting the voltage, increase the voltage to 0.4 V.)  * Adjusting the cable with the EXCV fully opened or fully closed can damage the EXCVA. Be sure to adjust the cable with the EXCV set in adjustment position. (6-4) * Do not turn the EXCVA pulley using the wrench. 3) If the position sensor output voltage is 4.5 V and more at fully open position, adjust the output voltage to specified by turning out the No. 2 cable adjuster 2. Repeat the above procedure (Step 4) until the output voltage is within the specified value. Position sensor output voltage E EXCV is fully close: 0.5 Output Voltage 1.3 EXCV is fully open: 3.7 Output Voltage 4.5 L Is the voltage OK? P YES Replace the ECM with a known good one, and inspect it again. M NO Replace the EXCVA with a new one. A 3) After repairing the trouble, clear the DTC using SDS tool. (4-27) S