P1397 - System Voltage Out Of Self - Test Range - DTC Chart
P1397 - SYSTEM VOLTAGE OUT OF SELF - TEST RANGE - DTC CHART
| Description: This DTC sets when the 12-volt system voltage is too high or too low during the key ON engine OFF (KOEO) or key ON engine running (KOER) self-test. It sets if the system voltage falls below or exceeds the calibrated threshold at any time during the KOEO or KOER self-test. | |||
Possible Causes:
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| Diagnostic Aids: Make sure the battery voltage is between 11 and 18 volts before running a KOEO or KOER self-test. Refer to the service information , Electronic Engine Controls. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | Refer to the Description, Possible Causes and Diagnostic Aids for the DTC. | ||