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side. Is a resistance of less than 2 Ohms registered? CHECK RJB and RENEW if necessary. CHECK the No LOCATE and RECTIFY the break in the circuit B7: CHECK THE GROUND CONNECTION OF THE AUXILIARY CLIMATE CONTROL Measure the resistance between the auxiliary climate GD150L (BK/WH), wiring harness side and ground. 1 Is a resistance of less than 2 Ohms registered? GO to B8 . No LOCATE and RECTIFY the break in the circuit B8: CHECK VOLTAGE AT AUXILIARY CLIMATE CONTROL EVAPORATOR TEMPERATURE Disconnect Connector C4HA30 from auxiliary climate 1 Ignition switch in position II. 2 SWITCH ON auxiliary climate control. 3 Measure the voltage between the auxiliary climate C4HA30, pin 1, circuit VHA30A (BN/YE), wiring 4 Is a voltage of approx. 5 volts measured? GO to B11 . No - The voltage measured is more than 6 Volts:LOCATE GO to B9 . B9: CHECK THE CIRCUIT BETWEEN THE AUXILIARY CLIMATE CONTROL EVAPORATOR
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