DTC P0A9B (67): Battery Module Temperature Signal Circuit Problem; DTC P1568 (67): Battery Module Temperature Signal Circuit Problem

NOTE:

Reset the MCM (see HOW TO RESET THE MCM ).
Turn the ignition switch ON (II), and wait for 5 seconds.
Is DTC P0A9B (67)* (P1568 (67)**) indicated?
1. YES - Go to step 3.
2. 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.
Turn the ignition switch OFF.
Turn the battery module switch OFF (see TURNING OFF POWER TO THE HIGH VOLTAGE CIRCUIT ).
Remove the IPU lid (see TURNING OFF POWER TO THE HIGH VOLTAGE CIRCUIT ).
Check BCM module connector B (22P) for a poor connection.
Is the connection OK?
1. YES - Go to step 7.
2. NO - Repair as necessary.
Turn the ignition switch ON (II).
Measure voltage between BCM module connector terminal B12 and body ground.

Fig 1: Measuring Voltage Between BCM Module Connector Terminal B12 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there 1.0 V or less?
1. YES - Replace the battery module (see BATTERY MODULE REMOVAL/INSTALLATION ).
2. NO - Substitute a known-good BCM module, turn the battery module switch ON, and recheck. If the symptom/indication goes away, replace the original BCM module.