Trouble Codes/Diagnostic Trouble Codes (DTCs)

Diagnostic Energy Reserve Module (DERM) provides a record of DTCs stored according to type. Current DTCs are faults presently being detected. Current DTCs are stored in Random Access Memory (RAM) and are erased when fault is corrected. Current DTCs can be read using flash code diagnostics provided through INFLATABLE RESTRAINT indicator light, a Scan tester such as Tech 1, or on-board diagnostics on vehicles with an on-board diagnostics panel.