TM 5-5420-226-20-1 ( ( Symptom-73 DETAILED TROUBLESHOOTING PROCEDURE SUPPORT SYSTEM -   PERSONNEL HEATER T (Continued) Check HEATER MASTER switch for   continuity. I Second Technician (Operator’s Station) l l l l Disconnect control panel heater harness connector (CKT 400,    405)    at    HEATER MASTER switch. Set   HEATER MASTER switch ON. Connect red   probe   of  meter    to  one  connector of  HEAT- ER    MASTER switch and    black probe to   other switch connector. Check if  meter indicates continuity. Does    meter indicate continuity? ) l   Replace HEATER MASTER switch    (page 10-77). l   Connect basket-control panel power harness at master control panel. l   Connect 3 battery ground straps    (page 10-268). ( o^YES o- n + 0 /“ (CKT   400) Ey’-J & c1 C’c 0’ 0?2 G    UtP ,, .-, CP ‘   # ‘@DQ, @ “o l l l l l Replace master control panel heater harness (page 10-85). Connect control panel harness connectors at HEATER MASTER switch. Connect basket-control panel power harness at   master control panel. Install    control panel    starting harness connector in  master control panel. Connect baaket-control panel starting harness connector to   master control panel. Connect 3  battery ground strain baae 10-268). .— TA10739O 4-701