Pinpoint tests of external controls

A1: CHECK STOP LIGHTS ON.

1 Turn on the ignition. Depress the brake pedal.

• Are the brake lights on?

→ Yes

Go to A3

→ No

Go to A2

A2: CHECK 54V CJB FUSE.

1 Enter the OFF position.

2CHECK F54 (15 A).

• Is fuse F54 OK?

→ Yes

See Section 417-01 for more information.

→ No

Install a new fuse. If the fuse blows again, recheck the system. See Section 417-01 for more information.

A3: ENGINE KEY REMOVAL ELECTRICAL CIRCUIT CHECK.

1 Turn on the ignition, the gearbox is in position "R" ("parking").

• Can the ignition switch be turned to "0" and is it possible to remove the key from the ignition when the gear selector is in the position "R"?

→ Yes

Go to A4

→ No

Go to A8

A4: CHECKING THE VOLTAGE SUPPLY TO THE PARK GEAR LOCK ELECTROMAGNET.

1 Disconnect the Shift Lever Assembly (C931).

2 Measure voltage between pin 3 of C931 (green and white) And "weight".

• Is the voltage 0 V when the brake pedal is not depressed and is the battery voltage detected when the brake pedal is depressed?

→ Yes

Go to A5

→ No

Repair open circuit 15S-TA33 between pin 1 and pin 3 C444 (brake light switch).

A5: PARK GEAR INTERLOCK SOLENOID GROUND CHECK.

1 Measure the resistance between pin 1 of C931 (black) And "weight".

• Is the resistance less than 5 ohms?

→ Yes

Go to A6

→ No

Repair open circuit 31-TA34 between C931 pin 1 and "weight".

A6: GEAR SELECT LEVER ELECTRICAL CIRCUIT CHECK.

1 Measure the resistance at the shift lever block connector (C931) between pins 3 and 1. The shift lever is in position "R".

• Is the resistance between 20 ohms and 35 ohms?

→ Yes

Go to A7

→ No

Replace the parking lock solenoid.

A7: PARK GEAR INTERLOCK SOLENOID FUNCTIONAL CHECK.

1 Set the shift lever to "R", "N", "D", "1" And "2".

- Unlock mechanically, if necessary, following the description given in this section.

• Does the resistance exceed 10 ohms in all of the above positions?

→ Yes

The parking position lock solenoid has no electrical faults. Check for mechanical faults.

→ No

Replace the parking position lock solenoid.

A8: CHECK F8 FUSE IN CJB.

1CHECK F8 (30 A).

• Is fuse F8 OK?

→ Yes

Go to A9

→ No

Install a new fuse. Recheck the system.

A9: PARK LOCK SWITCH TEST.

1 Disconnect Gear selector lock (C931).

2 Connect the connecting wire between pin 2 of C931 (black and yellow) And "weight".

- Make sure that only pin 2 is grounded and no other.

• Can the ignition key be removed with the connecting cable connected?

→ Yes

Go to A10

→ No

Go to A11

A10: SELECT LOCK GROUND CIRCUIT CHECK.

1 Measure the resistance between pin 1 of C931 (black) And "weight".

• Is the resistance less than 5 ohms?

→ Yes

Replace the gear selector lock.

→ No

Repair open in circuit 31-TA34 between pin 1 of C931 and "weight".

A11: FUSE VOLTAGE CHECK F8.

1 Measure voltage at fuse F8 (30A).

• Does the battery voltage register?

→ Yes

Go to A12

→ No

Repair the open in the power circuit to fuse F8.

A12: CHECK THE VOLTAGE IN THE IGNITION SWITCH.

1 Disconnect Ignition Switch (C456).

2 Measure the voltage between pin 4 of C456 (red) And "weight".

• Does the battery voltage register?

→ Yes

Go to A13

→ No

Repair open circuit between fuse F8 (30A) and pin 4 C456.

A13: 31S-TA34 ELECTRICAL CIRCUIT CHECK.

1 Measure the resistance between pin 3 of C456 (black and white) and pin 2 C931 (black and yellow).

• Is the resistance less than 1 ohm?

→ Yes

The ignition key removal lock solenoid located in the ignition switch is damaged. REPLACE ignition switch. See Section 211-05 for more information.

→ No

Repair open circuit 31S-TA34 between C456 pin 3 and C931 pin 2.