P1495

Tests 1 - 2:

Tests 3 - 7:

Tests 8 - 12:

Test 13:

SYMPTOM
P1495 - LEAK DETECTION PUMP SOLENOID CIRCUIT

WHEN MONITORED
Ignition ON and battery voltage greater than 10.4 volts.

SET CONDITION
The state of the solenoid circuit does not match the PCM's desired state.

POSSIBLE CAUSES
- LDP switch sense circuit open
- LDP switch sense circuit shorted to ground
- LDP vacuum supply
- Wiring harness intermittent problem
- Generator source circuit open
- Leak detection pump
- LDP solenoid control circuit shorted to ground
- LDP solenoid control circuit open
- Powertrain Control Module