DTC P1703:00 [MZI-3.7]

id0102d2318800

DTC P1703:00 | Brake switch out of self-test range
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DETECTION CONDITION | • Indicates that during the KOEO self-test, the brake pedal position signal was high, or during the KOER self-test, the BPP signal did not cycle high and low.
POSSIBLE CAUSE | • Brake switch No.1 mis installation • Brake switch No.1 circuit malfunction • Brake switch No.1 malfunction • Connector or terminal malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has FREEZE FRAME DATA been recorded? | Yes | Go to the next step.
No | Record 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 | VERIFY THE BRAKE PEDAL WAS APPLIED • Was the brake pedal applied and released during the KOEO self-test? (See KOEO/KOER SELF TEST [MZI-3.7].) | Yes | Go to the next step.
No | Perform the KOER self-test. (See KOEO/KOER SELF TEST [MZI-3.7].) Apply and release the brake pedal during the KOER self-test, then go to Step 10
4 | INSPECT THE OPERATION OF THE BLAKE/TAILLIGHT • Turn the ignition switch to the ON position (Engine off). • Depress and release the brake pedal and check the blake/taillight operation. • Do the blake/taillight operate correctly? | Yes | Go to the next step.
No | Repair or replace harness or blake/taillight, then go to Step 10.
5 | INSPECT THE CRUISE CONTROL OPERATION • Check for cruise control operation. • Does the cruise control operate correctly? | Yes | Go to the next step.
No | Repair or replace suspected part, then go to Step 10.
6 | INSPECT BRAKE SWITCH AND PCM CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect the brake switch connector. • Inspect for poor connection (such as damaged/ pulled-out pins, corrosion). • Are there any malfunction? | Yes | Repair or replace suspected part, then go to Step 10.
No | Go to the next step.
7 | INSPECT BRAKE SWITCH NO.1 CIRCUIT MALFUNCTION • Turn the ignition switch to the ON position (Engine off). • Measure the voltage between PCM terminal 1T (wiring harness-side) and body ground. • Verify the following values when the brake pedal to the floor and releasing. ― Brake pedal fully depressed: more than 10 V ― Brake pedal fully released: less than 1.0 V • Is the voltage normal? | Yes | Go to the next step.
No | Repair or replace suspected part, then go to Step 10.
8 | INSPECT BRAKE SWITCH • Inspect the brake switch. (See BRAKE SWITCH INSPECTION.) • Is there any malfunction? | Yes | Repair or replace suspected part, then go to Step 10.
No | Go to the next step.
9 | INSPECT FOR CORRECT PCM OPERATION • Disconnect all the PCM connectors. • Visually inspect for: ― Pushed out pins ― Corrosion • Connect all the PCM connectors and verify that they seat correctly. • Retrieve DTCs using the M-MDS. • Is the PENDING CODE for this DTC present? | Yes | Go to the next step.
No | The system is correctly. Go to the next step.
10 | VERIFY TROUBLESHOOTING OF DTC P1703:00 HAS BEEN COMPLETED • Verify that all disconnected connectors reconnected. • Clear DTC from memory using M-MDS. • Perform the KOEO or KOER self-test. (See KOEO/KOER SELF TEST [MZI-3.7].) • Is PENDING CODE same as DTC present? | Yes | Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [MZI-3.7].) Go to the next step.
No | Go to the next step.
11 | VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [MZI-3.7].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [MZI-3.7].)
No | Troubleshooting completed.