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
(e) Engine at normal operating temperature

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 in order.




(c) 2 Trip Detection Logic
Diagnostic codes 25, 26, 27 and 71 use "2 trip detection logic". With this logic, when a malfunction is first detected, the malfunction is temporarily stored in the ECU memory. If the same case is detected again during the second drive test, this second detection causes the "CHECK ENGINE" Warning Light to light up.
The 2 trip repeats the same mode a 2nd time. (However, the ignition switch must be turned OFF between the 1st time and 2nd time).




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." Component Tests and General Diagnostics







DIAGNOSTIC TROUBLE CODE TABLE

Code 12 Refer to Test 7 and Ignition System Tests.
Code 13 Refer to Ignition System
Code 14 Refer to Test 8
Code 21 Refer to California Vehicles Only - HO2S Test
Code 22 Refer to Test 6
Code 24 Refer to Test 5
Code 25 Refer to Test 4 and California Vehicles Only - HO2S Test
Code 26 Refer to Test 4 and California Vehicles Only _ HO2S Test
Code 27 Refer to California Vehicles Only - HO2S Test
Code 31 Refer to Test 3
Code 32 Refer to Test 3
Code 41 Refer to Test 2
Code 42 Refer to Component Inspection
Code 43 Refer to Test 7
Code 52 Refer to Component Inspection
Code 53 Refer to Component Inspection
Code 71 Refer to Test California Vehicles Only - EGR Test
Code 51 Refer to Test 2 and 11