DTC 46

DTC 46: VSA Solenoid
1. Verify the DTC.
Is DTC 54 or 55 indicated?
YES-Do the appropriate troubleshooting for the DTC.
NO-Go to step 2.
2. Turn the ignition switch OFF.
3. Disconnect modulator unit connector B (8P) and VSA control unit connector A (22P).








4. Check for continuity between the appropriate VSA control unit connector A (22P) VSA solenoid circuit terminal and body ground (see table).
Is there continuity?
YES-Repair short to body ground in the appropriate VSA solenoid circuit wire between the VSA control unit and the modulator unit.
NO-Go to step 5.
5. Connect the modulator unit connector B (8P).








6. Check for continuity between the appropriate VSA control unit connector A (22P) VSA solenoid circuit terminal and body ground (see table).
Is there continuity?
YES-Replace the modulator unit.
NO-Go to step 7.
7. Disconnect modulator unit connector B (8P).








8. Connect the appropriate modulator unit connector B (8P) VSA solenoid circuit terminal to body ground with a jumper wire (see table).








9. Check for continuity between the appropriate VSA control unit connector A (22P) VSA solenoid circuit terminal and body ground (see table).
Is there continuity?
YES-Go to step 10.
NO-Repair open in the appropriate VSA solenoid circuit wire between the VSA control unit and the modulator unit.
10. Remove the jumper wire from modulator unit connector B (8P).
11. Connect modulator unit connector B (8P).





12. Connect the VSA relay 4P connector terminal No. 2 to body ground with a jumper. The wire colors of the VSA relay connector are GRN, RED/BLU, GRN/ YEL, and BRN/BLK.








13. Check the resistance between the appropriate VSA control unit connector A (22P) terminal and body ground (see table).
APPLY/DUMP: 3 - 5 ohms (at 20°C, 68°F)
Is the resistance OK ?
YES-Go to step 14.
NO-Replace the modulator unit.
14. Disconnect modulator unit connector B (8P), and remove the jumper wire from the VSA relay 4P connector.








15. Check for continuity between the appropriate VSA control unit connector A (22P) terminal and all other VSA solenoid circuit terminals (see table).
Is there continuity?
YES-Repair short in the appropriate wires between the VSA control unit and the modulator unit.
NO-Go to step 16.
16. Connect modulator unit connector B (8P).








17. Measure the resistance between the appropriate VSA control unit connector A (22P) terminal and all other VSA solenoid circuit terminals (see table).
Is there less than 3 ohms ?
YES-Replace the modulator unit.
NO-Check for loose VSA control unit connectors. If necessary, substitute a known-good VSA control unit, and recheck.