P1592
DTC P1592 (26): Motor Current V Phase Signal Circuit Low Input1. Reset the MCM.
2. Turn the ignition switch OFF.
3. Turn the ignition switch ON (II).
Is DTC P1592 indicated?
YES-Go to step 4.
NO-Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the motor current V phase sensor and at the MCM.
4. Turn the ignition switch OFF.
5. Turn the battery module switch OFF.
6. Remove the IPU lid.
7. Turn the ignition switch ON (II).
8. Measure voltage between MCM connector terminals C5 and C11.
Is there about 2 - 3 V?
YES-Update the MCM if it does not have the latest software, or substitute a known-good MCM, then recheck. If the symptom/indication goes away with a known-good MCM, replace the original MCM.
NO-Go to step 9.
9. Measure voltage between MCM connector terminals C11 and C16.
Is there more than 4.5 V?
YES-Go to step 10.
NO-Update the MCM if it does not have the latest software, or substitute a known-good MCM, then recheck. If the symptom/indication goes away with a known-good MCM, replace the original MCM
10. Turn the ignition switch OFF.
11. Remove the PDU cover.
12. Disconnect the motor current V phase sensor 3P connector.
13. Turn the ignition switch ON (II).
14. Measure voltage between motor current V phase sensor 3P connector terminals No. 1 and No. 2.
Is there more than 4.5 V?
YES-Go to step 15.
NO-Repair open in the wire between the motor current V phase sensor and the MCM (C16).
15. Turn the ignition switch OFF.
16. Disconnect MCM connector C (17P).
17. Check for continuity between motor current V phase sensor 3P connector terminal No. 3 and body ground.
Is there continuity?
YES-Repair short in the wire between the motor current V phase sensor and the MCM (C5).
NO-Go to step 18.
18. Check for continuity between MCM connector terminal C5 and motor current V phase sensor 3P connector terminal No. 3.
Is there continuity?
YES-Replace the motor current V phase sensor. If sensor replacement does not fix the problem, update the MCM if it does not have the latest software, or substitute a known-good MCM, then recheck. If the symptom/indication goes away with a known-good MCM, replace the original MCM.
NO-Repair open; in the wire between the motor current V phase sensor and the MCM (C5).