Year: 1985

Models: Pickup, 4Runner

Engine: 2.4: (144 CID) EFI 4-cyl

Engine Codes: 22RE, 22REC

Abbreviations:
ECU: Electronic Control Unit
AFM: Air Flow Meter
TPS: Throttle Position Sensor
THW: Water Thermo Sensor
KS: Knock Sensor

ECU Trouble Codes

Code Explanation
1 Normal operation
2 Open or shorted AFM
Defective AFM or ECU
3 No signal from igniter 4 times in succession
4
5
6
7
8
9
10
11 Short circuit in check connector terminal T with the air conditioning switch ON
or throttle switch IDL point OFF
Defective air conditioning switch, Throttle Position Sensor (TPS) circuit,
Throttle Position Sensor (TPS) or Electronic Control Unit (ECU)
12 Knock control sensor signal has not reached judgement level in succession
Defective knock control sensor circuit or Electronic Control Unit (ECU)
13 Knock CPU Faulty