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Last Modified: 9-16-2014 6.6 C Doc ID: RM000002KQO0DVX Model Year: 2015 Model: Tundra Prod Date Range: [08/2014 - ] Title: 1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0604; Random Access Memory (RAM); 2015 MY Tundra [08/2014 - ] DTC P0604 Random Access Memory (RAM) DESCRIPTION The ECM continuously monitors its internal memory status. This self-check ensures that the ECM is functioning illuminate the MIL and store a DTC immediately. DTC NO. DTC DETECTION CONDITION TROUBLE AREA P0604 ECM RAM errors (1 trip detection logic) ECM MONITOR STRATEGY Related DTCs None Required sensors/Components (Main) ECM Required sensors/Components (Related) None Duration 6 times MIL operation Immediate TYPICAL ENABLING CONDITIONS Monitor runs whenever following DTCs not present None TYPICAL MALFUNCTION THRESHOLDS Main CPU and sub CPU mirroring Fail CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. 1. Turn the ignition switch to ON and turn the Techstream on. 2. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation). 3. Turn the ignition switch off and wait for at least 30 seconds. 4. Turn the ignition switch to ON and turn the Techstream on. 5. Wait 16 seconds or more. 6. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. 7. 1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0604; Rand... |