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• When Monitored:Continously with the ignition on. • Set Condition:This code is set immediately when the Cluster detects excessive voltage on the heated seat Possible Causes (P81) LEFT HEATED SEAT LO INDICATOR DRIVER CIRCUIT SHORTED TO BATTERY LEFT HEATED SEAT SWITCH CLUSTER Diagnostic Test 1. VERIFY THAT DTC B1216-LEFT HEATED SEAT SWITCH LO INDICATOR CONTROL CIRCUIT HIGH IS With the scan tool, record and erase DTC’s Operate the Heated Seat Switch in both positions several times. With the scan tool, read DTC’s. Does the DTC B1216-LEFT HEATED SEAT LO INDICATOR CON- Yes >> Go To 2 No >> The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, Perform BODY VERIFICATION TEST – VER 1. (Refer to 2. DISCONNECT THE DRIVER HEATED SEAT SWITCH AND RE-READ DTC Disconnect the Left Heated Seat Switch connector. With the scan tool erase DTC’s Cycle the ignition switch off then back on. With the scan tool, read DTC’s. Does the DTC B1216-LEFT HEATED SEAT LO INDICATOR CON- Yes >> Go To 3 No >> Replace the Left Heated Seat switch. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8G - 42 HEATED SEATS - ELECTRICAL DIAGNOSTICS LX |