2005 DR Service Manual

81-370-05059

https://truckmanualshub.com/ DR/DH HEATING & AIR CONDITIONING 24 - 1 HEATING & AIR CONDITIONING TABLE OF CONTENTS page page HVAC - ELECTRICAL DIAGNOSTICS. . . . . . . . . . . . 1 HVAC - SERVICE INFORMATION . . . . . . . . . . . . 190 HVAC - ELECTRICAL DIAGNOSTICS TABLE OF CONTENTS page page HVAC - ELECTRICAL DIAGNOSTICS MODE 1 CIRCUIT SHORTED TO IGN OR DIAGNOSIS AND TESTING BATT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 A/C SWITCH FAULT . . . . . . . . . . . . . . . . . . . . 3 MODE 1 OVERCURRENT (DUAL-ZONE) . . . . 65 BACKLIGHT DIMMING RX FAILURE . . . . . . . . 4 MODE 1 OVERCURRENT (SINGLE-ZONE) . . 71 BLEND CALIBRATION FAULT (DUAL-ZONE) . . 6 MODE 2 CALIBRATION FAULT . . . . . . . . . . . 76 BLEND CALIBRATION FAULT (SINGLE- MODE 2 CIRCUIT SHORTED TO GROUND . . 81 ZONE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 MODE 2 CIRCUIT SHORTED TO IGN OR BLEND CIRCUIT SHORTED TO GROUND BATT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 (DUAL-ZONE) . . . . . . . . . . . . . . . . . . . . . . . . 16 MODE 2 OVERCURRENT (DUAL-ZONE) . . . . 83 BLEND CIRCUIT SHORTED TO GROUND MODE 2 OVERCURRENT (SINGLE-ZONE) . . 89 (SINGLE-ZONE) . .…