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Sfi System - Diagnosis: Wiring Lexus RX II

Testing & Diagnostics 2 illustrations ~682 words

WIRING DIAGRAM

see scheme 51under DTC P0010..

see scheme 339under DTC P0335 CRANKSHAFT POSITION SENSOR "A" CIRCUIT, DTC P0339 CRANKSHAFT POSITION SENSOR "A" CIRCUIT INTERMITTENT.

see scheme 660under DTC P2195 OXYGEN (A/F) SENSOR SIGNAL STUCK LEAN (BANK 1 SENSOR 1), DTC P2196 OXYGEN (A/F) SENSOR SIGNAL STUCK RICH (BANK 1 SENSOR 1), DTC P2197 OXYGEN (A/F) SENSOR SIGNAL STUCK LEAN (BANK 2 SENSOR 1), DTC P2198 OXYGEN (A/F) SENSOR SIGNAL STUCK RICH (BANK 2 SENSOR 1).

see scheme 238under DTC P0136 OXYGEN SENSOR CIRCUIT MALFUNCTION (BANK 1 SENSOR 2), DTC P0156 OXYGEN SENSOR CIRCUIT MALFUNCTION (BANK 2 SENSOR 2).

see scheme 129under DTC P0100 MASS OR VOLUME AIR FLOW CIRCUIT, DTC P0102 MASS OR VOLUME AIR FLOW CIRCUIT LOW INPUT, DTC P0103 MASS OR VOLUME AIR FLOW CIRCUIT HIGH INPUT.

see scheme 660under DTC P2195 OXYGEN (A/F) SENSOR SIGNAL STUCK LEAN (BANK 1 SENSOR 1), DTC P2196 OXYGEN (A/F) SENSOR SIGNAL STUCK RICH (BANK 1 SENSOR 1), DTC P2197 OXYGEN (A/F) SENSOR SIGNAL STUCK LEAN (BANK 2 SENSOR 1), DTC P2198 OXYGEN (A/F) SENSOR SIGNAL STUCK RICH (BANK 2 SENSOR 1)

see scheme 367under DTC P0351 IGNITION COIL "A" PRIMARY/SECONDARY CIRCUIT, DTC P0352 IGNITION COIL "B" PRIMARY/SECONDARY CIRCUIT, DTC P0353 IGNITION COIL "C" PRIMARY/SECONDARY CIRCUIT, DTC P0354 IGNITION COIL "D" PRIMARY/SECONDARY CIRCUIT, DTC P0355 IGNITION COIL "E" PRIMARY/SECONDARY CIRCUIT, DTC P0356 IGNITION COIL "F" PRIMARY/SECONDARY CIRCUIT for the wiring diagram of the ignition system.

Scheme 742

Scheme 742: WIRING DIAGRAM

Scheme 743

Scheme 743: CONFIRMATION DRIVING PATTERN
  1. Connect the hand-held tester or the OBD II scan tool to the DLC3.
  2. Record DTC and the freeze frame data.
  3. Use the hand-held tester to set the check mode (See «PRE-CHECK»(ref-209540-S25291281422005121000000) ).
  4. Read the value on the misfire counter for each cylinder when idling. If the value is displayed on the misfire counter, skip the following procedure of confirmation driving.
  5. Drive the vehicle several times with the engine speed, load and its surrounding range shown with ENGINE SPD, CALCLOAD in the freeze frame data or MISFIRE RPM, MISFIRE LOAD in the DATALIST. If you have no hand-held tester, turn the ignition switch OFF after the symptom is simulated once. Then repeat the simulation process again. HINT: In order to memorize the DTC of misfire, it is necessary to drive around MISFIRE RPM, MISFIRE LOAD in the DATA LIST for the following period of time. Take care not to turn the ignition switch OFF. Turning the ignition switch OFF switches the diagnosis system from check mode to normal mode. So all DTCs, etc. are erased.
  6. Check whether there is misfire or not by monitoring DTC and the freeze frame data. After that, record them.
  7. Turn the ignition switch OFF and wait for at least 5 seconds.

see scheme 339under DTC P0335 CRANKSHAFT POSITION SENSOR "A" CIRCUIT, DTC P0339 CRANKSHAFT POSITION SENSOR "A" CIRCUIT INTERMITTENT.

see scheme 415under DTC P0441 EVAPORATIVE EMISSION CONTROL SYSTEM INCORRECT PURGE FLOW, DTC P0442 EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED (SMALL LEAK), DTC P0446 EVAPORATIVE EMISSION CONTROL SYSTEM VENT CONTROL CIRCUIT, DTC P0456 EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED (VERY SMALL LEAK).

Refer to WIRING DIAGRAM .

see scheme 573under DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW, DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH.

see scheme 573under DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW, DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH.

see scheme 620underDTC P2120 THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT, DTC P2122 THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT LOW INPUT, DTC P2123 THROTTLE/PEDAL POSITION SENSOR/SWITCH.

see scheme 660under DTC P2195 OXYGEN (A/F) SENSOR SIGNAL STUCK LEAN (BANK 1 SENSOR 1), DTC P2196 OXYGEN (A/F) SENSOR SIGNAL STUCK RICH (BANK 1 SENSOR 1), DTC P2197 OXYGEN (A/F) SENSOR SIGNAL STUCK LEAN (BANK 2 SENSOR 1), DTC P2198 OXYGEN (A/F) SENSOR SIGNAL STUCK RICH (BANK 2 SENSOR 1).

see scheme 660under DTC P2195 OXYGEN (A/F) SENSOR SIGNAL STUCK LEAN (BANK 1 SENSOR 1), DTC P2196 OXYGEN (A/F) SENSOR SIGNAL STUCK RICH (BANK 1 SENSOR 1), DTC P2197 OXYGEN (A/F) SENSOR SIGNAL STUCK LEAN (BANK 2 SENSOR 1), DTC P2198 OXYGEN (A/F) SENSOR SIGNAL STUCK RICH (BANK 2 SENSOR 1).

see scheme 715under ACIS CONTROL CIRCUIT..