CHECKING COMPONENTS AND WIRING
- Ignition off
- Check the accelerator pedal (AP) position sensor connector. Check for contact resistance and oxidation. Check the power supply cable (12 V) between accelerator pedal (AP) position sensor terminal #1 (wiring side) and the relevant fuse for the circuit. Check for a short-circuit to ground. Check for an open-circuit. Check that the fuse for the circuit has not blown. Check the ground lead for power supply (12 V) between accelerator pedal (AP) position sensor terminal #3 (wiring side) and the relevant ground terminal. Check for contact resistance and oxidation. Check for an open-circuit. HINT: With the ignition on, the power supply to the accelerator pedal (AP) position sensor must be approximately 12 V measured between accelerator pedal (AP) position sensor terminals #1 (wiring side) and #3 (wiring side). Remedy as necessary. Other information: see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000) To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000) For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000) For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) . For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000) For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) . To access and replace the accelerator pedal (AP) position sensor, see «ACCELERATOR PEDAL (AP), REPLACING»(ref-476780-S18973143032012060500000) .
- Continue Refer to «CHECKING THE CONNECTORS AND CABLES»(ref-476773-S30488137272012060500000)
CHECKING THE WIRING
- Ignition off. Check the signal cable between engine control module (ECM) terminal #B17 (#B27) and accelerator pedal (AP) position sensor terminal #5. Check for a short-circuit to supply voltage. HINT: With the ignition on, the power supply from the engine control module (ECM) must be approximately 5 V measured between accelerator pedal (AP) position sensor terminals #6 (wiring side) and #4 (wiring side). Try a new accelerator pedal (AP) position sensor if no fault is found and the fault is permanent. Remedy as necessary. Other information: see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000) To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000) For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000) For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) . For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000) For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) . To access and replace the accelerator pedal (AP) position sensor, see «ACCELERATOR PEDAL (AP), REPLACING»(ref-476780-S18973143032012060500000) .
- Continue Refer to «VERIFICATION»(ref-476773-S25345588482012060500000)
- Ignition off
- Check the accelerator pedal position sensor and engine control module (ECM) connectors. Check for contact resistance and oxidation. Check the power supply cable (5 volts) between engine control module (ECM) terminal #B9 (#B19) and accelerator pedal (AP) position sensor terminal #6 (wiring side). Check for an open-circuit. Check for a short-circuit to ground. Check the signal ground cable between engine control module (ECM) terminal #B5 (#B15) and accelerator pedal (AP) position sensor terminal #4 (wiring side). Check for an open-circuit. HINT: With the ignition on, the power supply from the engine control module (ECM) must be approximately 5 V measured between accelerator pedal (AP) position sensor terminals #6 (wiring side) and #4 (wiring side). Check the signal cable between engine control module (ECM) terminal #B17 (#B27) and accelerator pedal (AP) position sensor terminal #5. Check for an open-circuit. Check for a short-circuit to ground. Try a new accelerator pedal (AP) position sensor if no fault is found and the fault is permanent. Remedy as necessary. Other information: see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000) To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000) For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000) For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) . For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000) For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) . To access and replace the accelerator pedal (AP) position sensor, see «ACCELERATOR PEDAL (AP), REPLACING»(ref-476780-S18973143032012060500000) .
- Continue Refer to «VERIFICATION»(ref-476773-S23294553132012060500000)