Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Corolla and 2003 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

CHECK OPERATION (STARTER)
1. Check that the starter operates normally and that the engine starts.
1. NO: GO TO ENGINE TROUBLESHOOTING
2. YES: GO TO NEXT STEP.
INPUT SIGNAL CHECK
1. See input signal check on page 05-745.
2. Check the indicator light when shifting into except D position.
  OK:
  
  The indicator Light goes off when shifting into except D position.
  
  Fig 1: Checking Input Signal
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )
2. NG: GO TO NEXT STEP.

INSPECT TERMINAL VOLTAGE (D)

Turn the ignition switch to ON.

Measure voltage between terminal 4 (D) of cruise control ECU assy connector and body ground when shifting into D position and other positions.

OK:

VOLTAGE RESISTANCE SPECIFICATION

Shift Position	Voltage
D position	10 - 16 V
Other positions	Below 1 V

Fig 2: Identifying Terminal Voltage (D)

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )
NG: GO TO NEXT STEP.

CHECK HARNESS AND CONNECTOR (BETWEEN CRUISE CONTROL ECU ASSY AND PARK/NEUTRAL POSITION SWITCH)
1. Check for open and short circuit in harness and connector between cruise control ECU assy and park/neutral position switch (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
2. OK: CHECK AND REPLACE CRUISE CONTROL ECU ASSY (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE )