Hand-Held Tester:

Check operation of engine cranking.
CHECK:

When turning the ignition switch to the START position, check whether the starter motor starts.

OK:

Starter motor starts.
1. OK: Check for intermittent problems (See PRE-CHECK ).
2. NG: Go to next step.

Connect hand-held tester, and check STA signal.

PREPARATION:

Connect the hand-held tester to the DLC3.
Turn the ignition switch ON, and push the hand-held tester main switch ON.
Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / STARTER SIG.

CHECK:

Read the STA signal on the hand-held tester while the starter operates.

OK:

IGNITION SWITCH POSITION AND STA SIGNAL

Ignition Switch Position	ON	START
STA Signal	OFF	ON

NG: Go to step 5 .
OK: Go to next step.

Check voltage between terminal STAR, STSW and E1 of ECM connector.

CHECK:

Measure the voltage between the terminals of the E6 and E7 ECM connectors, while cranking the engine (ignition switch START position).

OK:

ECM CONNECTOR TERMINALS VOLTAGE

Tester Connection	Specified Condition
STAR (E6-9) - E1 (E7-1)	9 to 14 V
STSW (E7-12) - E1 (E7-1)	9 to 14 V

Fig 1: Identifying ECM Connectors

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

RESULT:

ECM CONNECTOR TERMINALS (STAR/STSW) VOLTAGE

Terminal STAR	Terminal STSW	Proceed to
9 to 14 V	9 to 14 V	A
0 V	9 to 14 V	B
0 V	0 V	C

B: Replace ECM (See ENGINE CONTROL MODULE (ECM) ).
C: Go to step 9 .
A: Go to next step.

Check park/neutral position switch.

PREPARATION:

Remove the P1 park/neutral position switch connector.

CHECK:

Check continuity between each terminal shown below when the shift lever is moved to each range.

SWITCH POSITION AND TERMINALS NUMBER

Shift range	Terminal No. to continuity
P	1 - 3	6 - 9
R	2 - 3	-
N	3 - 5	6 - 9
D	3 - 7	-
2	3 - 4	-
L	3 - 8	-

Fig 2: Identifying Park/Neutral Position Switch Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

There is continuity.

NG: Replace the park/neutral position switch.
OK: Check and repair harness and connector between park/neutral position switch and ECM (See HOW TO USE THE DIAGNOSTIC TABLE AND INSPECTION ).

Check STARTER RELAY ).
1. NG: Replace starter relay.
2. OK: Go to next step.
Check for open and short in harness and connector between park/neutral position switch and starter relay, starter relay and body ground (See HOW TO USE THE DIAGNOSTIC TABLE AND INSPECTION ).
1. NG: Repair or replace harness or connector.
2. OK: Go to next step.

Check engine room R/B (Starter relay voltage).

PREPARATION:

Remove the starter relay from the engine room R/B.

CHECK:

Measure the voltage between the terminal of the engine room R/B and body ground.

OK:

TESTER CONNECTION AND SPECIFIED CONDITION

Tester Connection	Specified Condition
Starter relay (5) - Body ground	9 to 14 V

Fig 3: Identifying Starter Relay Connectors

NG: Check and repair harness and connector between starter relay and battery.
OK: Go to next step.

Check starter (See TEST ).
1. NG: Repair or replace starter.
2. OK: Go to next step.

Check ignition switch.

PREPARATION:

Remove the lower finish panel.
Disconnect the ignition switch connector.

CHECK:

Check continuity between terminals shown below.

OK:

SWITCH POSITION AND TERMINALS NUMBER

Switch Position	Terminal No. to continuity
LOCK	-	-
ACC	2 - 3	-
ON	2 - 3 - 4	6 - 7
START	1 - 2 - 4	6 - 7 - 8

Fig 4: Identifying Ignition Switch Connector & Switch Position

NG: Replace ignition switch.
OK: Check for open in harness and connector between ECM and ignition switch, ignition switch and battery (See HOW TO USE THE DIAGNOSTIC TABLE AND INSPECTION ).