DTC P16BC: Alternator FR Terminal Circuit/IGP Circuit Low Voltage Check for poor connections at the alternator 4P connector. Are the connectors OK?
YES | - | Go to Step 2 .
NO | - | Reconnect the connector, then go to Step 18 .
Turn the ignition switch ON (II). Clear the DTC with the HDS. Start the engine. Check under these conditions: A/C on Temperature control at maximum cool Blower fan at maximum speed Rear window defogger on Headlights on high beam Hold the engine speed at 2,000 rpm (min −1 ) (in Park or neutral) for 1 minute. Check for Temporary DTCs or DTCs with the HDS. Is DTC P16BC indicated?
YES | - | Go to Step 8 .
NO | - | Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the alternator.■
Turn the ignition switch OFF. Disconnect the alternator 4P connector. Turn the ignition switch ON (II). Measure voltage between alternator 4P connector terminal No. 1 and body ground. Is there battery voltage?
YES | - | Go to Step 12 .
NO | - | Repair open in the wire between the alternator (IG1 line) and the No. 18 ACG (15 A) fuse in the under-dash fuse/relay box, then go to Step 18 .