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properly. If outputs from the CPUs are different and deviate from the standards, the ECM will illuminate the DTC DETECTION CONDITION AND TROUBLE AREA MONITOR STRATEGY MONITOR STRATEGY TYPICAL ENABLING CONDITIONS TYPICAL ENABLING CONDITIONS TYPICAL MALFUNCTION THRESHOLDS TYPICAL MALFUNCTION THRESHOLDS INSPECTION PROCEDURE 1. CHECK DTC a. Clear DTC. (See DTC CHECK/CLEAR ). b. Turn the ignition switch off. c. Disconnect the cable from the negative battery terminal and wait for 1 minute. d. Connect the cable to the negative battery terminal. e. Turn the ignition switch to ON. f. Check DTC. OK: P1607 is not present. DTC Code DTC Detection Condition Trouble Area P1607 ECM CPUs malfunction ECM Related DTC P1607: Internal control module range check Required sensors/Components (main) ECM Required sensors/Components (sub) Cruise control Frequency of Operation Continuous Duration 0.3 seconds MIL Operation Immediate Sequence of Operation None Monitor runs whenever the following DTCs are not present None Cruise control Forbiddance When either condition below is met: - Cruise control Operating Low speed control Operating
2008 Toyota Tundra 2008 ENGINE PERFORMANCE Engine Control System (2UZ-FE) - Tundra
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