DTC P2502[ZJ, ZY, Z6]
id0102c1814000
Without Throttle Valve Actuator
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DTC P2502 |
Charging system voltage problem |
|---|---|
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DETECTION CONDITION
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• The PCM determines that the generator output voltage is more than 17 V or the battery voltage is less than 11 V while the engine running.
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POSSIBLE CAUSE
|
• Generator malfunction
• Battery malfunction
• Connector or terminal malfunction
• Open circuit in wiring harness between generator terminal B and battery positive terminal
• PCM malfunction
|
 |
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
|
|---|---|---|---|
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1
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VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
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Yes
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Go to the next step.
|
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No
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Record the FREEZE FRAME DATA on the repair order, then go to the next step.
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||
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2
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VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Verify related Service Information availability.
• Is any related Service Information available?
|
Yes
|
Perform repair or diagnosis according to the available Service Information.
• If the vehicle is not repaired, go to the next step.
|
|
No
|
Go to the next step.
|
||
|
3
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INSPECT BATTERY
• Turn the ignition switch off.
• Inspect the battery.
• Is the battery normal?
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Yes
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Go to the next step.
|
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No
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Replace the battery, then go to Step 7.
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||
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4
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INSPECT POOR INSTALLATION OF GENERATOR TERMINAL
• Turn the ignition switch off.
• Inspect the generator terminal B installation nut for looseness.
• Is the nut loose?
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Yes
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Tighten the generator terminal B installation nut, then go to Step 7.
|
|
No
|
Go to the next step.
|
||
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5
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INSPECT POOR INSTALLATION OF BATTERY POSITIVE TERMINAL
• Inspect the battery positive terminal for looseness.
• Is the terminal loose?
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Yes
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Connect the battery positive terminal correctly, then go to Step 7.
|
|
No
|
Go to the next step.
|
||
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6
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INSPECT BATTERY CHARGING CIRCUIT FOR OPEN CIRCUIT
• Disconnect the generator terminal B.
• Measure the voltage between generator terminal B (wiring harness-side) and body ground.
• Is the voltage B+?
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Yes
|
Go to the next step.
|
|
No
|
Repair or replace wiring harness between generator terminal B and battery positive terminal, then go to the next step.
|
||
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7
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VERIFY TROUBLESHOOTING OF DTC P2502 COMPLETED
• Make sure to reconnect all connectors.
• Clear DTC from memory using the M-MDS.
• Start the engine.
• Is same DTC present?
|
Yes
|
Replace the PCM, then go to the next step.
|
|
No
|
Go to the next step.
|
||
|
8
|
VERIFY AFTER REPAIR PROCEDURE
• Perform the “AFTER REPAIR PROCEDURE”.
• Are any DTCs present?
|
Yes
|
Go to the applicable DTC inspection.
(See DTC TABLE[ZJ, ZY, Z6].)
|
|
No
|
DTC troubleshooting completed.
|
||
With Throttle Valve Actuator
|
DTC P2502 |
Charging system voltage problem |
|---|---|
|
DETECTION CONDITION
|
• The PCM determines that the generator output voltage is 17 V or more or the battery voltage is 11 V or less while the engine running.
|
|
POSSIBLE CAUSE
|
• Generator malfunction
• Battery malfunction
• Connector or terminal malfunction
• Open circuit in wiring harness between generator terminal B and battery positive terminal
• PCM malfunction
|
 |
|
Diagnostic procedure
|
STEP |
INSPECTION |
ACTION |
|
|---|---|---|---|
|
1
|
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
|
Yes
|
Go to the next step.
|
|
No
|
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
|
||
|
2
|
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Verify related Service Information availability.
• Is any related Service Information available?
|
Yes
|
Perform repair or diagnosis according to the available Service Information.
• If the vehicle is not repaired, go to the next step.
|
|
No
|
Go to the next step.
|
||
|
3
|
INSPECT BATTERY
• Turn the ignition switch off.
• Inspect the battery.
• Is the battery normal?
|
Yes
|
Go to the next step.
|
|
No
|
Replace the battery, then go to Step 7.
|
||
|
4
|
INSPECT POOR INSTALLATION NUT OF GENERATOR TERMINAL B
• Turn the ignition switch off.
• Inspect the generator terminal B installation nut for looseness.
• Is the nut loose?
|
Yes
|
Tighten the generator terminal B installation nut, then go to Step 7.
|
|
No
|
Go to the next step.
|
||
|
5
|
INSPECT POOR INSTALLATION OF BATTERY POSITIVE TERMINAL
• Inspect the battery positive terminal for looseness.
• Is the terminal loose?
|
Yes
|
Connect the battery positive terminal correctly, then go to Step 7.
|
|
No
|
Go to the next step.
|
||
|
6
|
INSPECT BATTERY CHARGING CIRCUIT FOR OPEN CIRCUIT
• Disconnect the generator terminal B.
• Measure the voltage between generator terminal B (wiring harness-side) and body ground.
• Is the voltage B+?
|
Yes
|
Go to the next step.
|
|
No
|
Repair or replace wiring harness between generator terminal B and battery positive terminal, then go to the next step.
|
||
|
7
|
VERIFY TROUBLESHOOTING OF DTC P2502 COMPLETED
• Make sure to reconnect all connectors.
• Clear DTC from memory using the M-MDS.
• Perform the ”KOER self-test”.
• Is the DTC P2502 present?
|
Yes
|
Replace the PCM, then go to the next step.
|
|
No
|
Go to the next step.
|
||
|
8
|
VERIFY AFTER REPAIR PROCEDURE
• Perform the “AFTER REPAIR PROCEDURE”.
• Are any DTCs present?
|
Yes
|
Go to the applicable DTC inspection.
(See DTC TABLE[ZJ, ZY, Z6].)
|
|
No
|
DTC troubleshooting completed.
|
||