DTC P1703[AJ (3.0L Duratec)]

id0102a4826900

DTC P1703

Brake switch out of self-test range

DETECTION CONDITION

•  Indicates that during KOEO Self-Test, brake signal was high. Or during KOER Self-Test, the BPP signal did not cycle high and low.

POSSIBLE CAUSE

•  Brake switch malfunction

•  Connector or terminal malfunction

•  Open circuit between battery positive terminal and brake switch terminal A

•  Short to power circuit between brake switch terminal B and PCM terminal 92

•  Open circuit between brake switch terminal B and PCM terminal 92

•  PCM malfunction

DTC P1703	Brake switch out of self-test range
DETECTION CONDITION	• Indicates that during KOEO Self-Test, brake signal was high. Or during KOER Self-Test, the BPP signal did not cycle high and low.
POSSIBLE CAUSE	• Brake switch malfunction • Connector or terminal malfunction • Open circuit between battery positive terminal and brake switch terminal A • Short to power circuit between brake switch terminal B and PCM terminal 92 • Open circuit between brake switch terminal B and PCM terminal 92 • PCM malfunction

Diagnostic procedure

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has FREEZE FRAME DATA been recorded?	Yes	Go to next step.
1		No	Record FREEZE FRAME DATA on repair order, then go to next step.
2	VERIFY RELATED SERVICE INFORMATION AVAILABILITY • Check for related Service Information availability. • Is any related Service Information available?	Yes	Perform repair or diagnosis according to available Service Information. • If vehicle is not repaired, go to next step.
2		No	Go to next step.
3	INSPECT BRAKE SWITCH CONNECTOR POOR CONNECTION • Turn the ignition switch off. • Disconnect brake switch connector. • Check for poor connection (such as damaged, pulled-out pins, and corrosion, etc.). • Is there any malfunction?	Yes	Repair or replace terminal, then go to Step 9.
3		No	Go to next step.
4	INSPECT BRAKE SWITCH POWER CIRCUIT FOR OPEN CIRCUIT • Turn the ignition switch to the ON position (Engine OFF). • Measure voltage between brake switch terminal A (harness-side) and body ground. • Is the voltage B+?	Yes	Go to next step.
4		No	Repair or replace harness for open circuit, then go to Step 9.
5	INSPECT BRAKE SWITCH SIGNAL CIRCUIT FOR SHORT TO POWER • Turn the ignition switch to the ON position (Engine OFF). • Measure voltage between brake switch terminal B (harness-side) and body ground. • Is voltage B+?	Yes	Repair or replace harness for short to power, then go to Step 9.
5		No	Go to next step.
6	INSPECT PCM CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect PCM connector. • Check for poor connection (such as damaged, pulled-out pins, and corrosion). • Is there any malfunction?	Yes	Repair or replace terminal, then go to Step 9.
6		No	Go to next step.
7	INSPECT BRAKE SWITCH SIGNAL CIRCUIT FOR OPEN CIRCUIT • Turn the ignition switch off. • Check continuity between brake switch terminal B (harness-side) and PCM terminal 92 (harness-side). • Is there continuity?	Yes	Go to next step.
7		No	Repair or replace harness for open circuit, then go to Step 9.
8	INSPECT BRAKE SWITCH • Inspect brake switch. • Is there any malfunction?	Yes	Replace brake switch, then go to next step.
8		No	Go to next step.
9	VERIFY TROUBLESHOOTING OF DTC P1703 COMPLETED • Make sure to reconnect all disconnected connectors. • Clear DTC from memory using M-MDS. • Perform KOEO/KOER Self-Test. • Is PENDING CODE same as DTC present?	Yes	Replace PCM, then go to next step. (See PCM REMOVAL/INSTALLATION[AJ (3.0L Duratec)].)
9		No	Go to next step.
10	VERIFY AFTER REPAIR PROCEDURE • Perform "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE[AJ (3.0L Duratec)].) • Are any DTCs present?	Yes	Go to applicable DTC inspection. (See DTC TABLE[AJ (3.0L Duratec)].)
10		No	Troubleshooting completed.