Toyota OBD/OBD2 Codes >> Land Cruiser 4.5L (1995 – 1997)

Model Year Engine identification System
Land Cruiser 4.5L 1995-97 1  FZ-FE   SFI

General information

  • Engine control module (ECM) incorporates self-diagnosis function.
  • Malfunction indicator lamp (MIL) will illuminate if certain faults are recorded.
  • ECM operates in backup mode if sensors fail, to enable vehicle to be driven to workshop.


  • Trouble codes can be displayed by using a Scan Tool connected to the data link connector (DLC) [1]


  • After the faults have been rectified, trouble codes can be erased by using a Scan Tool connected to the data link connector (DLC) or as follows:
  • Ensure ignition switched OFF.
  • Disconnect battery ground cable for 30 seconds minimum.
  • Reconnect battery ground cable.
  • Repeat checking procedure to ensure no data remains in ECM fault memory.

NOTE: Disconnecting battery ground lead will erase trouble codes but may also erase memory from electronic units such as radio.

Trouble code identification

OBD·II code Fault location Probable cause
PO, P2,UO Refer to OBD-11 trouble code tables
P1100 Barometric pressure (BARO) sensor- circuit malfunction ECM
P1120 Accelerator pedal position (APP) sensor -circuit malfunction Wiring, APP sensor, ECM
P1121 Accelerator pedal position (APP) sensor – range/performance problem APP sensor, ECM
P1125 Throttle actuator control (TAC) motor – circuit malfunction Wiring, TAC motor, ECM
P1126 Magnetic clutch – circuit malfunction Wiring, magnetic clutch, ECM
P1127 Traction control system – circuit malfunction Wiring, ECM
P1128 Throttle actuator control (TAC) motor – lock malfunction TAC motor, throttle body, ECM
P1129 Throttle actuator control (TAC) system – malfunction Wiring, ECM
P1200 Fuel pump (FP) relay/ECM – circuit malfunction Wiring, fuel pump/control module, ECM
P1300 Ignition control – circuit malfunction Wiring, ignition module, ECM
P1335 Crankshaft position (CKP) sensor – no signal Wiring, CKP sensor, starter motor, ECM
P1349 Camshaft position (CMP) actuator system – malfunction Valve timing, CMP actuator, ECM
P1400 Throttle position (TP) sensor 2 – circuit malfunction Wiring, TP sensor, ECM
P1401 Throttle position (TP) sensor 2 – range/   performance problem TP sensor
P1405 Turbocharger (TC) boost pressure sensor – circuit malfunction Wiring, TC boost pressure sensor, ECM
P1406 Turbocharger (TC) boost pressure sensor – range/performance problem TC boost pressure sensor
P1500 Starter signal – circuit malfunction Wiring, ignition switch, engine control relay, ECM
P1511 Turbocharger (Tq boost pressure – pressure too low Intake system/air control valve, wiring, TC   wastegate regulating valve/actuator, ECM
P1512 Turbocharger (TC) boost pressure – pressure too high Wiring, TC wastegate regulating valve/   actuator, ECM
P1520 Stop lamp switch – signal malfunction Wiring, stop lamp switch, ECM
P1565 Cruise control switch – signal malfunction Wiring, cruise control switch, ECM
P1600 Engine control module (ECM) – supply voltage Wiring, ECM
P1605 Knock control – malfunction ECM
P1630 Traction control system – malfunction Wiring, throttle control module, ECM
P1633 Engine control module (ECM) – throttle actuator control (TAC) system – malfunction ECM
P1652 Turbocharger (TC) 2 air control solenoid -circuit malfunction Wiring, air control solenoid, ECM
P1656 Oil control valve – circuit malfunction Wiring, oil control valve, ECM
P1658 Turbocharger (TC) wastegate regulating valve – circuit malfunction Wiring, TC wastegate regulating valve, ECM
P1661 Turbocharger (TC) 2 exhaust gas control valve – circuit malfunction Wiring, exhaust gas control valve, ECM
P1662 Exhaust bypass valve – circuit malfunction Wiring, exhaust bypass valve, ECM
P1780 Park/neutral position (PNP) switch – circuit malfunction Wiring, PNP switch, ECM