4Runner 2.7L – Previa 2.4L – T100 Pickup 2.7L – Tacoma 2.4/2.7L (1994 – 2009)

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- 1

o 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