| Model | Year | Engine identification | System |
|---|---|---|---|
| 4Runner 2.7L | 1995-00 | 3RZ-FE | SFI |
| Previa 2.4L | 1995-97 | 2TZ·FZE | SFI |
| T100 Pickup 2.7L | 1994-98 | 3RZ·FE | SFI |
| Tacoma 2.4L | 1995-04 | 2RZ·FE | SFI |
| Tacoma 2.7L | 1995-09 | 3RZ·FE/2TR·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.
Accessing
- Trouble codes can be displayed by using a Scan Tool connected to the data link connector (DLC):
o Previa- 1o Except Previa – 2
Erasing
- 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 60 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-11 code | Fault location | Probable cause |
PO,P2,UO | Refer to OBD-11 trouble code tables | – |
P1130 | Heated oxygen sensor (H02S)- LH front- range/performance malfunction | Wiring, H025, air induction system, fuel pressure, injector(s), ECM |
P1133 | Heated oxygen sensor (H02S) – LH front- response malfunction | H02S, air induction system, fuel pressure, injector(s), ECM |
P1135 | Heated oxygen sensor (H02S) – LH front – heater circuit malfunction | Wiring, H02S, ECM |
P1300 | Ignition control 1 – circuit malfunction | Wiring, ignition module, ECM |
P1300 | Ignition control – cylinder No.1 – circuit malfunction- Tacoma (2000-+) | Wiring, ignition coil/module, ECM |
P1305 | Ignition control – cylinder No.2 – circuit malfunction | Wiring, ignition coil/module, ECM |
P1310 | Ignition control 2 – circuit malfunction | Wiring, ignition module, ECM |
P1310 | Ignition control – cylinder No.3 – circuit malfunction- Tacoma (2000-+) | Wiring, ignition coil/module, ECM |
P1315 | Ignition control – cylinder No.4 – circuit malfunction | Wiring, ignition coil/module, ECM |
P1335 | Crankshaft position (CKP) sensor – no signal | Wiring, CKP sensor, ECM |
P1500 0 | Voltage transformer – circuit malfunction | Wiring, voltage transformer, ECM |
P1500 fJ | Starter signal – circuit malfunction | Wiring, ignition switch, engine control relay, ECM |
P1510 | Supercharger (SC) pressure control – circuit malfunction | Wiring, SC magnetic clutch/relay, SC bypass valve, intake system, ECM |
P1520 | Stop lamp switch – signal malfunction | Wiring, stop lamp switch, ECM |
P1600 | Engine control module (ECM) -supply voltage | Wiring, ECM |
P1605 | Knock control – malfunction | ECM |
P1613 | Secondary air injection (AIR) system | Wiring open/short circuit, AIR solenoid, ECM |
P1780 | Park/neutral position (PNP) switch – circuit malfunction | Wiring, PNP switch, ECM |
P1782 | Transfer box low ratio switch – circuit malfunction | Wiring, transfer box low ratio switch, ECM |
P1783 | Transfer box neutral switch – circuit malfunction | Wiring, transfer box neutral switch, ECM |