P1569
DTC 70 (P1569): Battery Cell Temperature Signal Circuit Low Input1. Reset the MCM.
2. Turn the ignition switch ON (II), and wait for 5 seconds.
Is DTC 70 or 71 indicated?
YES-Go to step 3.
NO-Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the BCM module and at the battery module.
3. Turn the ignition switch OFF.
4. Turn the battery module switch OFF.
5. Remove the IPU lid.
6. Measure resistance between BCM module connector terminals B11 and B22.
Is there 10 Ohms - 1 k Ohms?
YES-Substitute a known-good BCM module, and recheck. If the symptom/indication goes away, replace the original BCM module.
NO-Replace the battery module.