Honda Fit/Jazz - Interlock System - Shift Lock System Circuit Troubleshooting (L15A CVT)
Interlock System - Shift Lock System Circuit Troubleshooting
1. | Press the brake pedal.
Are the brake lights ON?
YES - Go to Update the PCM if it does not have the latest software, or subsutitute a known-good PCM, then recheck. If the symptom/ indication goes away with a known-good PCM, replace the original PCM.n
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8. | Turn the ignition switch OFF.
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9. | Disconnect the battery negative terminal.
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10. | Connect PCM connectors A (31P) and E (31P).
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11. | Connect the battery negative terminal.
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12. | Disconnect the gauge assembly connector B (14P).
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13. | Turn the ignition switch ON (II).
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14. | Press the brake pedal, and measure the voltage between gauge assembly connector terminal B6 and body ground.
Is there battery voltage?
YES - Release the brake pedal, then go to 15.
NO - Repair open or short in the wire between PCM connector terminal E13 and the gauge assembly connector terminal B6.n
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15. | Turn the ignition switch OFF.
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16. | Disconnect the shift lock solenoid/park pin switch connector.
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17. | Turn the ignition switch ON (II).
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18. | Measure the voltage between shift lock solenoid/park pin switch connector terminal No. 1 and body ground. Do not press the accelerator pedal.
Is there battery voltage?
YES - Go to 19.
NO - Check for blown No. 16 fuse in under-hood fuse/relay box. If the fuse is OK, repair open or short in the wire between the shift lock solenoid connector and the under-hood fuse/relay box.n |
19. | Press the brake pedal, and measure the voltage between shift lock solenoid connector terminals No. 1 and No. 3. The shift lever must be in P position.
Is there battery voltage?
YES - Go to 20.
NO - Go to 21.
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20. | Connect the battery positive terminal to shift lock solenoid/park pin switch connector terminal No. 1, and connect the battery negative terminal to the terminal No. 3, then check that the shift lock solenoid operates.
NOTE: Do not connect the battery positive terminal to the terminal No. 3 or you will damage the diode inside the shift lock solenoid.
Does the shift lock solenoid operate properly?
YES - Repair the shift lock mechanism.n
NO - Replace the shift lock solenoid.n |
21. | Turn the ignition switch OFF.
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22. | Disconnect gauge assembly connector B (14P).
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23. | Check for continuity between gauge assembly connector terminal B1 and shift lock solenoid/park pin switch connector terminal No. 3.
Is there continuity?
YES - Go to 24.
NO - Repair open in the wire between gauge assembly connector terminal B1 and the shift lock solenoid/park pin switch connector.n |
24. | Check for continuity between gauge assembly connector terminal B14 and body ground while the shift lever is in P position, and when the shift lever in any position other than P and N.
Is there continuity while the shift lever is in P position, and no continuity when the shift lever in any position other than P and N?
YES - Faulty shift lock system circuit in the gauge assembly, replace the gauge assembly.n
NO - Repair open in the ATP P wire between gauge assembly connector terminal B14 and the transmission range switch.n
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Honda Fit/Jazz 02-05 Workshop Manual
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