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EPS DTC Troubleshooting: 83-01, 83-02
DTC 83-01: CAN Communication Failure
DTC 83-02: CAN Communication Timeout Error
NOTE:
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Troubleshoot any PGM-FI system DTCs first. |
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DTC Description |
DTC |
Freeze Frame |
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83-01 CAN Communication Failure |
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83-02 CAN Communication Timeout Error |
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1. |
Problem verification:
Problem verification
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?1. |
Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode. |
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?2. |
Clear the DTC with the HDS.
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?3. |
Turn the ignition switch to LOCK (0), then turn it to ON (II) again, or select the OFF mode, then the ON mode. |
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?4. |
Wait 60 seconds or more. |
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?5. |
Check for DTCs with the HDS.
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DTC Description |
DTC |
Freeze Frame |
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83-01 CAN Communication Failure |
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83-02 CAN Communication Timeout Error |
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Is DTC 83-01 or 83-02 indicated?
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The failure is duplicated. Go to step 2. |
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Intermittent failure, the system is OK at this time.? |
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2. |
Open wire check (F-CAN_H, F-CAN_L lines) 1:
Open wire check (F-CAN_H, F-CAN_L lines) 1
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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 connectors.
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EPS control unit connector A (11P) |
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VSA modulator-control unit 21P connector or VSA modulator-control unit 38P connector | |
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?3. |
Check for continuity between test points 1 and 2.
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Test condition |
IG LOCK (0) or OFF mode |
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EPS control unit connector A (11P): disconnected |
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VSA modulator-control unit 21P connector or VSA modulator-control unit 38P connector: disconnected |
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Test circuit |
F-CAN_H |
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Test point 1 |
EPS control unit connector A (11P) No. 10 (WHT) |
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Test point 2 |
Without LKAS: VSA modulator-control unit 21P connector No. 8 (WHT) |
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With LKAS: VSA modulator-control unit 38P connector No. 38 (WHT) | |
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Test circuit |
F-CAN_L |
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Test point 1 |
EPS control unit connector A (11P) No. 11 (RED) |
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Test point 2 |
Without LKAS: VSA modulator-control unit 21P connector No. 15 (RED) |
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With LKAS: VSA modulator-control unit 38P connector No. 26 (RED) | |
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Is there continuity?
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The F-CAN_H and F-CAN_L wires are not open. Go to step 3. |
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Repair an open in the wire between the EPS control unit and the VSA modulator-control unit.? |
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3. |
Open wire check (F-CAN_H, F-CAN_L lines) 2:
Open wire check (F-CAN_H, F-CAN_L lines) 2
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?1. |
Reconnect the following connector.
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VSA modulator-control unit 21P connector or VSA modulator-control unit 38P connector | |
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?2. |
Disconnect the following connector.
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Steering angle sensor 4P connector | |
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?3. |
Check for continuity between test points 1 and 2.
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Test condition |
IG LOCK (0) or OFF mode |
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EPS control unit connector A (11P): disconnected |
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Steering angle sensor 4P connector: disconnected |
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Test circuit |
F-CAN_H |
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Test point 1 |
EPS control unit connector A (11P) No. 10 (WHT) |
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Test point 2 |
Steering angle sensor 4P connector No. 2 (WHT) | |
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Test circuit |
F-CAN_L |
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Test point 1 |
EPS control unit connector A (11P) No. 11 (RED) |
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Test point 2 |
Steering angle sensor 4P connector No. 3 (RED) | |
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Is there continuity?
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The F-CAN_H and F-CAN_L wires are OK. Go to step 4. |
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Repair an open in the wire between the EPS control unit and the steering angle sensor.? |
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4. |
EPS control unit check (update):
EPS control unit check (update)
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?1. |
Reconnect the following connectors.
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EPS control unit connector A (11P) |
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Steering angle sensor 4P connector | |
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?3. |
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, then start the engine. |
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?4. |
Wait 60 seconds or more. |
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?5. |
Check for DTCs with the HDS.
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DTC Description |
DTC |
Freeze Frame |
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83-01 CAN Communication Failure |
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83-02 CAN Communication Timeout Error |
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Is DTC 83-01 or 83-02 indicated?
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Troubleshooting is complete.? | | 