TL FWD V6-35L (2009) Powertrain Management - Data Link Connector Diagrams
69. Measure the voltage between PGM-FI main relay 1 4P connector terminal No. 4 and body ground.
Is there battery voltage?
YES - Go to step 70.
NO - Replace the under-hood fuse/relay box. See: Maintenance/Fuses and Circuit Breakers/Fuse Block/Service and Repair/Under-Hood
Fuse/Relay Box Removal and Installation
70. Check for continuity between PGM-FI main relay 1 4P connector terminal No. 3 and PCM connector terminal A6.
Is there continuity?
YES - Test PGM-FI main relay 1. See: Power and Ground Distribution/Testing and Inspection If the relay is OK, update the PCM if it does
not have the latest software, See: Testing and Inspection/Programming and Relearning/PCM Update or substitute a known-good PCM, See:
Testing and Inspection/Initial Inspection and Diagnostic Overview then recheck. If the symptom/indication goes away with a known-good
PCM, replace the original PCM. See: Engine Control Module/Service and Repair/PCM Replacement
NO - Repair open in the wire between the PCM (A6) and PGM-FI main relay 1.
71. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
72. Remove PGM-FI main relay 1 (A) from the under-hood fuse/relay box.
