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DTC Troubleshooting: B1126
DTC B1126: Driver's Power Window Motor B Pulse Malfunction
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DTC Description |
DTC |
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B1126 Driver's power window motor B pulse malfunction |
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1. |
Problem verification:
Problem verification
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?1. |
Check the parameter(s) below with the HDS.
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Signal |
Current conditions |
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Values |
Unit |
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Driver's P/W Motor Pulse B |
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Does the information indicator display DETECT while the window is moving, and display NONE when the window is stopped?
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Intermittent failure, the system is OK at this time.? |
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2. |
Power window motor pulse check:
Power window motor pulse check
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?1. |
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode. |
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?2. |
Disconnect the following connector.
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?3. |
Connect terminals A and B with a jumper wire.
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Terminal A |
Driver's power window motor 6P connector No. 3 (PNK) |
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Terminal B |
Body ground | |
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?4. |
Connect and disconnect the jumper wire to ground repeatedly. |
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?5. |
Check the parameter(s) below with the HDS.
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Signal |
Current conditions |
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Values |
Unit |
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Driver's P/W Motor Pulse B |
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Does the information indicator display DETECT?
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3. |
Shorted wire check (P/W DR MTR PLSB line):
Shorted wire check (P/W DR MTR PLSB line)
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?1. |
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode. |
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?2. |
Disconnect the jumper wire. |
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?3. |
Disconnect the following connector.
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?4. |
Check for continuity between test points 1 and 2.
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Test condition |
IG LOCK (0) or OFF mode
Driver's power window motor 6P connector: disconnected
Power window master switch 37P connector: disconnected |
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Test circuit |
P/W DR MTR PLSB |
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Test point 1 |
Power window master switch 37P connector No. 19 (PNK) |
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Test point 2 |
Body ground | |
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Is there continuity?
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Repair a short to ground in the wire.? |
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Repair an open or high resistance in the wire.? | |