DTC P1566:00
id050200820300
|
DTC P01566:00 |
TCM B+ low |
|---|---|
|
DETECTION CONDITION
|
• The PCM detects that battery voltage is less than threshold (changes by ATF temperature) at engine speed 500 rpm or more.
Diagnostic support note:
• This is a continuous monitor (CCM).
• The MIL does not illuminate.
• The HOLD indicator light flashes.
• PENDING CODE is not available.
• FREEZE FRAME DATA is not available.
• DTCs are stored in the PCM memory.
|
|
POSSIBLE CAUSE
|
• Generator malfunction
• PCM malfunction
|
Diagnostic procedure
|
STEP |
INSPECTION |
ACTION |
|
|---|---|---|---|
|
1
|
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has the FREEZE FRAME DATA been recorded?
|
Yes
|
Go to the next step.
|
|
No
|
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
|
||
|
2
|
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
• Verify related Service Bulletins and/or on-line repair information availability.
• Is any related repair information available?
|
Yes
|
Perform repair or diagnosis according to the available repair information.
• If the vehicle is not repaired, go to the next step.
|
|
No
|
Go to the next step.
|
||
|
3
|
INSPECT GENERATOR
• Inspect the generator.
• Is there any malfunction?
|
Yes
|
Replace the generator, then go to the next step.
|
|
No
|
Go to the next step.
|
||
|
4
|
VERIFY TROUBLESHOOTING OF DTC P1566:00 COMPLETED
• Make sure to reconnect all the disconnected connectors.
• Clear the DTC from the memory using the M-MDS.
• Perform the following procedure to ensure that the DTC has been resolved:
• Is the same DTC present?
|
Yes
|
Replace the PCM, then go to the next step.
|
|
No
|
No concern is detected. Go to the next step.
|
||
|
5
|
VERIFY AFTER REPAIR PROCEDURE
• Perform the “After Repair Procedure”.
(See AFTER REPAIR PROCEDURE.)
• Are any DTCs present?
|
Yes
|
Go to the applicable DTC inspection.
(See DTC TABLE.)
|
|
No
|
DTC troubleshooting completed.
|
||