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Wiring Diagrams. CHECK the operation of the PINPOINT TEST L : FAULT IN LEFT-HAND CENTRE VENTS AIR OUTLET TEST CONDITIONS DETAILS/RESULTS/ACTIONS L1: CHECK VOLTAGE AT LEFT-HAND CENTER VENTS AIR OUTLET TEMPERATURE Ignition switch in position 0. 1 Disconnect Connector C2H414-A from left-hand 2 Ignition switch in position II. 3 Switch on the air conditioning (A/C). 4 Measure the voltage between the left-hand centre C2H414-A, pin 1, circuit VH409A (WH), wiring 5 Is a voltage of approx. 5 volts measured? GO to L3 . No GO to L2 . L2: CHECK THE CIRCUIT BETWEEN THE LEFT-HAND CENTER VENTS AIR OUTLET Ignition switch in position 0. 1 Disconnect Connector C2H101-B from the EATC 2 Measure the resistance between the left-hand centre C2H414-A, pin 1, circuit VH409A (WH),wiring 3 Is a resistance of less than 2 Ohms registered? CHECK the EATC module, if necessary INSTALL a No LOCATE and REPAIR the break in circuit VH409A L3: CHECK THE CIRCUIT BETWEEN THE LEFT-HAND CENTER VENTS AIR OUTLET
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