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B1601–LEFT SOLAR SENSOR CIRCUIT LOW (ATC) (CONTINUED) For the Automatic Temperature Control (ATC) circuit diagram (Refer to 24 - HEATING & AIR CONDITIONING - For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes (G39) SUN SENSOR NO. 1 SIGNAL CIRCUIT SHORTED TO GROUND (G39) SUN SENSOR NO. 1 SIGNAL CIRCUIT SHORTED TO (G939) SUN SENSOR RETURN CIRCUIT SUN SENSOR A/C HEATER CONTROL NOTE: This DTC must be active for the results of this test to be valid. Do not perform this test if this DTC Diagnostic Test 1. CHECK FOR DTC B1601–LEFT SOLAR SENSOR CIRCUIT LOW WITH SUN SENSOR HARNESS Turn the ignition off. Disconnect the Sun Sensor harness connector. Turn the ignition on. With the scan tool, erase HVAC DTCs. Turn the ignition off, wait 10 seconds, and turn the ignition on. With the scan tool, read HVAC DTCs. Does the scan tool display: B1601–LEFT SOLAR SENSOR CIR- Yes >> Go To 2 No >> Replace the Sun Sensor in accordance with the Service Information. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 24 - 324 HVAC - ELECTRICAL DIAGNOSTICS WK |