Without Scan Tool
OUTPUT OF DIAGNOSTIC CODES
To obtain an output of diagnostic codes, proceed as follows:
1. Initial conditions
(a) Battery voltage above 11 V
(b) Throttle valve fully closed (throttle position sensor idle points closed)
(c) Transmission in neutral range
(d) Accessories switched OFF
2. Turn the ignition switch ON. Do not start the engine.
3. Using SST, connect terminals TE1 and E1 of the check connector.
HINT: The check connector is located near the ignition coil.
4. Read the diagnostic code as indicated by the number of flashes of the "CHECK ENGINE" warning light.
DIAGNOSTIC CODE
(a) Normal System Operation (no malfunction)
^ The light will alternately blink on and off for 0.26 second intervals.
(b) Malfunction Code Indication
^ In the event of a malfunction, the light will blink every 0.52 seconds. The first number of blinks will equal the first digit of a 2-digit diagnostic code, and after a 1.5 second pause, the 2nd number of blinks will equal the 2nd. If there are two or more codes, there will be a 2.5 second pause between each.
^ After all the codes have been signalled there will be a 4.5 second pause and they will all be repeated as long as the terminals TE1 and E1 of the check connector are connected.
HINT: In the event of a number of trouble codes, indication will begin from the smaller value and continue to the larger.
5. After the diagnosis check, remove SST. SST 09843-18020
DIAGNOSIS INDICATION
1. When 2 or more codes are indicated, the lowest number (code) will appear first.
2. All detected diagnostic codes, except code Nos.51 and 53, will be retained in memory by the ECU from the time of detection until cancellation.
3. Once the malfunction is cleared, the "CHECK ENGINE" warning light on the instrument panel will go off but the diagnostic code(s) remains stored in ECU memory (except for code Nos.51 and 53).
NOTE: Toyota does not provide trouble code driven diagnostic procedures for this vehicle. For information regarding diagnostic procedures, see "Non-Trouble Code Diagnostic Procedures/Troubleshooting with Volt/Ohm Meter." Troubleshooting With Volt/Ohmmeter
DIAGNOSTIC TROUBLE CODE TABLE
Code 12 Refer to Ignition System Tests.
Code 24 Refer to Test 5
Code 31 Refer to Test 3
Code 32 Refer to Test 3
Code 41 Refer to Test 2
Code 43 Refer to Test 7
Code 71 Refer to Test California Vehicles Only - EGR Test