DTC P1607 Cruise Control Input Processor
Description
The ECM continuously monitors its main and sub CPUs. This self-check ensures that the ECM is functioning properly. If outputs from the CPUs are different and deviate from the standard, the ECM will illuminate the MIL and store DTC(s) immediately.
| DTC Code | DTC Detection Condition | Trouble Area |
| P1607 | The ECM CPUs malfunction. | ECM |
Inspection procedure
| 1.CHECK DTC |
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Clear DTC .
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Turn the engine switch off.
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Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.
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Connect the cable to the negative (-) battery terminal.
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Turn the engine switch on (IG).
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Check DTC.
OK:
P1607 is not output.
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| OK | |
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