System Tests: Notes

NOTE: Before proceeding with any system test, ensure proper trouble shooting procedure was performed. See TROUBLE SHOOTING PROCEDURE under TROUBLE SHOOTING. If all systems are not operating, perform TEST NO. 14: BODY ELECTRONIC CONTROL UNIT DOES NOT OPERATE to verify operation of body Electronic Control Unit (ECU).

NOTE: When performing system test, it may be necessary to remove instrument panel for access to body Electronic Control Unit (ECU). For servicing of instrument panel, see INSTRUMENT PANEL under REMOVAL & INSTALLATION in appropriate MANUAL A/C-HEATER SYSTEMS article

SYMPTOM INDEX

System & Symptom

Test To Be Performed

Ignition Switch & Key Unlock Warning Switch System

Ignition Switch Does Not Operate In Each Position

Test No. 1

Key Unlock Warning System Buzzer Does Not Sound

Test No. 2

Instrument Panel

Open Door Warning Light Does Not Operate

Test No. 3

Power Window Control System

All Power Windows Will Not Operate

Test No. 4

Auto Down Function For Driver's Door Power Window Does Not Operate ⁽¹⁾

Test No. 5

Only One Power Window Does Not Operate

Test No. 6

Power Window Lock System Does Not Operate ⁽²⁾

Test No. 7

Power Door Lock Control System

Power Door Lock Does Not Operate On Any Door

Test No. 8

Power Door Locks May Not Be Locked Or Unlocked When Using Power Door Lock Control Switch

Test No. 9

Power Door Locks May Not Be Locked Or Unlocked When Using Power Door Lock Control Switch & The Key

Test No. 10

Power Door Locks May Not Be Locked Or Unlocked When Using The Key

Test No. 11

Two-Operation Unlock Function Does Not Operate ⁽³⁾

Test No. 11

Key Confinement Prevention Function Does Not Operate ⁽⁴⁾

Test No. 12

Power Door Lock Does Not Operate Only On One Door

Test No. 13

Various Operations

Body Electronic Control Unit Does Not Operate

Test No. 14

⁽¹⁾	Auto down function controls automatic operation of power window. When power window switch is pushed completely downward and then released, the power window will fully open. Auto down function may also be referred to as the one touch power window system.

⁽²⁾	Power window lock system prevents passenger power window from operating when window lock switch is depressed. Window lock switch is located driver's side of instrument panel. See Figure.

⁽³⁾	Two-operation unlock function unlocks all doors. When using the key and turning driver's door lock once, only driver's door will unlock. Turning driver's door lock twice in succession will unlock both doors simultaneously.

⁽⁴⁾	Key confinement prevention function prevents the doors from being locked if ignition key is in the ignition lock cylinder.