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ON-BOARD DIAGNOSTIC K–81 K Diagnostic procedure STEP INSPECTION ACTION 1 VERIFY RELATED REPAIR INFORMATION • Check for related Service Bulletins availability. • Is any related repair information available? Yes Perform repair or diagnosis according to available repair information. • If vehicle is not repaired, go to next step. No Go to next step. 2 INSPECT ATX CONNECTOR FOR POOR • Turn ignition key to OFF. • Disconnect ATX connector. • Check for poor connection (damaged/pulled- out terminal, corrosion, etc.). • Is connection okay? Yes Go to next step. No Repair or replace connector and/or terminals, then go to 3 INSPECT RESISTANCE • Inspect resistance between ATX connector (transaxle case side) terminals D and I. • Is resistance within 2.4—7.3 ohms? K–26 Resistance Inspection (On-Vehicle Yes Go to Step 6. No Go to next step. 4 INSPECT PRESSURE CONTROL SOLENOID • Disconnect pressure control solenoid connector. • Check for poor connection (damaged/pulled- out terminal, corrosion, etc.). • Is connection okay? Yes Go to next step. No Repair or replace connector and/or terminals, then go to 5 INSPECT RESISTANCE • Inspect resistance between pressure control solenoid terminals A and B. • Is resistance within 2.4—7.3 ohms? K–27 Resistance Inspection (Off-Vehicle Yes Replace solenoid harness, then go to Step 10. No Verify pressure control solenoid installation. • If solenoid installed correctly, replace pressure control solenoid, then go to Step 10. (See 6 INSPECT PCM CONNECTOR FOR POOR • Disconnect PCM connector. • Check for poor connection (damaged/pulled- out terminals, corrosion, etc.). • Is connection okay? Yes Go to next step. No Repair or replace connector and/or terminals, then go to 7 INSPECT ATX CONNECTOR CIRCUIT FOR • Inspect for continuity between PCM (harness- side) and ATX connector (vehicle harness- terminal D — PCM terminal 3V and ATX connector terminal I • Is there continuity between terminals? Yes Go to next step. No Repair or replace harness, the go to Step 10. 8 INSPECT ATX CONNECTOR CIRCUIT FOR • Turn ignition key to ON (engine OFF). • Inspect voltage at ATX connector terminal D (vehicle harness-side). • Is voltage 0 V? Yes Go to next step. No Repair or replace harness, then go to Step 10. 9 INSPECT PCM CIRCUIT FOR SHORT TO • Turn ignition key to OFF. • Inspect for continuity between ATX connector terminal D (harness-side) and body ground. • Is there continuity? Yes Repair or replace harness, then go to next step. No Go to next step. |