Initial Inspection and Diagnostic Overview

TROUBLE DIAGNOSIS



When the Transmission Control Module (TCM) senses an abnormality in the input or output systems, the "D4" indicator light in the gauge assembly will blink.




When the Service Check Connector (located under the dash on the passenger side) is connected with the special tool as shown, the "D4" indicator light will blink the Diagnostic Trouble Code (DTC) when the ignition switch is turned on. When the "D4" indicator light has been reported on, connect the Service Check Connector with the special tool. Then turn on the ignition switch and observe the "D4" indicator light.




Codes 1 through 9 are indicated by individual short blinks, codes 10 through 15 are indicated by a series of long and short blinks. One long blink equals 10 short blinks. Add the long and short blinks together to determine the code. After determining the code, refer to Diagnosis by Symptom.
Symptom Related Diagnostic Procedures

Some PGM-FI problems will also make the "D4" indicator light come on. After repairing the PGM-FI system, disconnect the BACK UP fuse 17.5 A) in the under-hood fuse/relay box for more than 10 seconds to reset the TCM memory.

NOTE:
- The PGM-FI system on this model is a sequential multiport fuel injection system.
- Disconnecting the BACK UP fuse also cancels the radio anti-theft code, preset stations and the clock setting. Get the customer's code number and make note of the radio presets before removing the fuse so you can reset them.




CAUTION:
- All SRS electrical wiring harnesses are covered with yellow insulation.
- Before disconnecting any part of the SRS wire harness, connect the short connectors.
- Replace the entire affected SRS harness assembly if it has an open circuit or damaged wiring.

Inspection For A Code Which Requires The Use Of Test Harness (07LAJ-PT3010A):
1. Remove the left side kick panel on the drivers side.



Connect the wire harness to the Test Harness, and/or connect the Test Harness to the TCM according to the troubleshooting flowchart

NOTE:
- Only the A and D terminals of the Test Harness are used for A/T troubleshooting.
- Unless otherwise noted, use only the Digital Multimeter, commercially available or KS-AHM-32003, for testing.

TCM Reset Procedure
1. Turn the ignition switch off.




2. Remove the No. 32 BACK UP fuse (7.5 A) from the under-hood fuse/relay box for 10 seconds to reset the TCM.

NOTE: Disconnecting the No. 32 BACK UP fuse also cancels the radio anti-theft code, preset stations and the clock setting. Get the customer's code number and make note of the radio presets before removing the fuse so you can reset them.

Final Procedure

NOTE: This procedure must be done after any troubleshooting.

1. Remove the special tool from the Service Check Connector.
2. Reset the TCM.
3. Set the radio preset stations and clock setting.