DTC P0560: Low Voltage in PCM Back up Circuit
NOTE: If the No.13 CLOCK BACKUP (7.5 A) fuse in the under-dash passenger's fuse/relay box is removed and the engine is started, MIL will come on and the PCM will store the DTC P0560.
1 Do the PCM Reset Procedure.
2 Start the engine. Is DTC P0560 indicated? YES-Go to step 3. NO-Intermittent failure, system is OK at this time. Check for poor connections or loose wire at the No.13 CLOCK BACK UP (7.5 A) fuse in the under-dash passenger's fuse/relay box and PCM.
3 Turn the ignition switch OFF .
4 Inspect the No.13 CLOCK BACK UP (7.5 A) fuse in the under-dash passenger's fuse/relay box. Is there fuse OK? YES-Go to step 5. NO-Check for these problems.
Repair short in the wire between the PCM (B21) and No.13 CLOCK BACKUP (7.5 A) fuse in the under-dash passenger's fuse/relay box.
Repair short in the wire the back up circuit.
A blown No.13 CLOCK BACK UP (7.5 A) fuse in the under-dash passenger's fuse/relay box.
5 Measure voltage between the PCM connector terminal B21 and body ground. Is there battery voltage? YES-Substitute a known-good PCM and recheck. If the symptom/indication goes away, replace the original PCM. NO-Repair open in the wire between the PCM (B21) and the No.13 CLOCK BACKUP (7.5 A) fuse in the under-dash passenger's fuse/relay box.