Test 4A - Diagnosing Warning Lamp Problems

NOTE: Oil pressure warning lamp and brake warning lamp cannot be actuated using DRB.

If a problem exists with oil pressure warning lamp, go to TEST 10A. If a problem does not exist with oil pressure warning lamp, use DRB to actuate each instrument cluster warning lamp. If warning lamps turn on then off, actuator test passes. Go to next step. If actuator test fails, go to TEST 4B.
Stop actuation test. Identify faulty lamp. Perform appropriate test listed in DIAGNOSING WARNING LAMP PROBLEMS table. If no warning lamp problems exist, system is operating properly at this time.

DIAGNOSING WARNING LAMP PROBLEMS

Problem Lamp

Perform Test No.

Air Bag

⁽¹⁾ *

Charging System

⁽²⁾ *

Coolant Temperature

Cruise Control

⁽³⁾ *

Low Fuel Level

Malfunction Indicator

⁽⁴⁾ *

Parking Brake

PRNDL Indicator

Seat Belt

⁽¹⁾	See AIR BAG RESTRAINT SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT section.

⁽²⁾	See ALTERNATOR & REGULATOR article in ELECTRICAL section.

⁽³⁾	See CRUISE CONTROL SYSTEM article in ACCESSORIES/SAFETY EQUIPMENT section.

⁽⁴⁾	See appropriate TESTS W/CODES article in the following ENGINE PERFORMANCE section. TESTS W/CODES - 3.3L , TESTS W/CODES - 3.5L