Seats - Non-Dtc Based Diagnostics: Diagnosis RAM Cab & Chassis 3500 HD

DIAGNOSIS AND TESTING - LUMBAR CONTROL SWITCH

Note. For complete circuit diagrams, see appropriate Wiring Information. Wiring Information includes wiring diagrams, connector pin-out and location views, details of wire harness routing and retention, splice and ground locations and proper wire and connector repair procedures.

Scheme 224

1. Disconnect and isolate the battery negative cable.
2. Remove the lumbar control switch from the seat. Refer to «SWITCH, LUMBAR CONTROL, REMOVAL»(ref-476555-S09905235332012060400000) .
3. Use an ohmmeter to test the continuity of the lumbar control switch using the following table. If not OK, replace the inoperative lumbar control switch. If switch tests OK, check for an open or short in the power lumbar support circuit wiring. If no open or short is found, replace the seat back. Refer to «SEAT BACK, FRONT, REMOVAL»(ref-476497-S20939475182012060400000) and/or «SEAT BACK, REAR, REMOVAL»(ref-476497-S19454358892012060400000) .

LUMBAR CONTROL SWITCH CONTINUITY