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(P0121) APPS 5-VOLT SUPPLY CIRCUIT (CONTINUED) When Monitored and Set Condition • When Monitored: Ignition on. • Set Condition: When the PCM recognizes the APP Sensor 5-Volt Supply circuit voltage is below 1.0 volt or POSSIBLE CAUSES APP SENSOR 5-VOLT SUPPLY CIRCUIT SHORT TO VOLTAGE APP SENSOR 5-VOLT SUPPLY CIRCUIT SHORT TO GROUND APP SENSOR 5-VOLT SUPPLY CIRCUIT SHORT TO SENSOR GROUND CIRCUIT(S) APP SENSOR 5-VOLT SUPPLY CIRCUIT OPEN TP SENSOR 5-VOLT SUPPLY CIRCUIT SHORT TO VOLTAGE TP SENSOR 5-VOLT SUPPLY CIRCUIT SHORT TO GROUND TP SENSOR 5-VOLT SUPPLY CIRCUIT SHORT TO SENSOR GROUND CIRCUIT(S) ACCELERATOR PEDAL POSITION SENSOR POWERTRAIN CONTROL MODULE For a complete Powertrain Control Module Circuit Diagram, (Refer to 9 - ENGINE - SCHEMATICS AND DIA- Diagnostic Test 1. PRE-DIAGNOSTIC CHECK OUT Note: Always perform diagnostics with a fully charged battery. Note: Check connectors — Clean/repair as necessary. Poor pin to Note: Check for applicable TSBs related to the problem. With the DRB III T , read PCM DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and Perform this procedure prior to symptom diagnosis. Continue Go To 2 ZH ENGINE - ELECTRICAL DIAGNOSTICS 9 - 93 |