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Home >> Kia >> 2002 >> Spectra Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1307: Chassis Acceleration Sensor Signal Malfunction, DTC P1308: Chassis Acceleration Sensor Signal Low Input & DTC P1309: Chassis Acceleration Sensor Signal High Input >> Test Procedure

Test Procedure

  1. Turn ignition off. Connect Hi-Scan Pro/Kia Data Pro Scan tool or equivalent to OBD-II Data Link Connector. See Figure . Turn ignition on. Monitor for other DTCs. If DTC P0501 is set, do all repairs associated with this DTC before continuing with this procedure. If no other DTCs are set, go to next step.
  2. Return vehicle to original condition. Using Hi-Scan Pro/Kia Data Pro Scan tool or equivalent, turn ignition on and monitor CAS sensor voltage signals. Voltage should be approximately 2.5 volts. If voltage is as specified, problem is intermittent. Check CAS sensor and ECM for proper harness connection and go to step  8 . If voltage is not as specified, go to next step.
  3. Turn ignition off. Thoroughly check CAS and ECM harness connectors for loose, bent, corroded, contaminated, deteriorated or damaged connector terminals. If connector terminals are okay, go to next step. If connector terminals are faulty, repair or replace as necessary and go to step  8 .
  4. Disconnect CAS 3-pin harness connector. See Fig 1 . Turn ignition on. Measure voltage between CAS connector terminal No. 1 (Blue/White wire). Voltage should be approximately 5 volts. If voltage is as specified, go to next step. If voltage is not as specified, repair open or short circuit as necessary and go to next step.
  5. Turn ignition off. Disconnect ECM 81-pin harness connector. See Figure . Measure resistance between CAS connector terminal No. 2 (Black/Green wire) and ECM connector terminal No. 17. Also measure resistance between CAS connector terminal No. 3 (Red/Black wire) and ECM connector terminal No. 60. Both resistances should be below one ohm. If resistances are as specified, go to next step. If any resistance is not as specified, repair open or short circuit as necessary and go to step  8 .
  6. With CAS harness connector and ECM harness connector disconnected. Measure voltage between ground and CAS connector terminal No. 60 (Red/Black wire). Voltage should be below 0.5 volts. If voltage is as specified, go to next step. If voltage is not as specified, repair open or short circuit as necessary and go to step  8 .
  7. With CAS harness connector and ECM harness connector disconnected. Measure resistance between ground and CAS connector terminal No. 3 (Red/Black wire). Also measure resistance between CAS connector terminal No. 2 (Black/Green wire) and No. 3 (Red/Black wire). Both resistances should be infinite. If resistances are as specified, temporarily install a known-good CAS sensor and check for proper operation. If problem is corrected, replace sensor and to next step. If any resistance is not as specified, repair open or short circuit as necessary and go to next step.
  8. After repair, return vehicle to original condition. Clear codes using Hi-Scan Pro/Kia Data Pro Scan tool or equivalent. Verify repairs by driving vehicle and monitoring for pending codes. If DTC is set during test drive, follow appropriate DTC test procedure.
Fig 1: Identifying Chassis Acceleration Sensor Connector Terminals
G00102684Courtesy of KIA MOTORS AMERICA, INC.
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