PGM-FI Control System — Troubleshooting Flowchart — PA Sensor [Ex. KQ]
6-52flowchartApplies to all markets except the KQ model (Ex. KQ).
Troubleshooting Flowchart — PA Sensor [Ex. KQ]
Self-diagnosis LED indicator blinks thirteen times: A problem in the Atmospheric Pressure (PA) Sensor circuit.
1
Check Engine warning light is on.
- LED indicates CODE 13.
2
Turn the ignition switch OFF.
3
Remove HAZARD fuse in the main fuse box for 10 seconds to reset ECU.
4
Turn the ignition switch ON.
5
Is Check Engine warning light on? Does LED indicate CODE 13?
NO
Intermittent failure (test drive may be necessary).
YES
6
Turn the ignition switch OFF.
7
Connect the PGM-FI test harness between the ECU and connector (page 6-19).
8
Turn the ignition switch ON.
9
Measure voltage between C13 (+) terminal and C12 (-) terminal.
10
Is there approx. 5V?
NO
Substitute a known-good ECU and recheck. If prescribed voltage is now available replace the original ECU.
YES
11
Measure voltage between C9 (+) terminal and C12 (-) terminal.
(To page 6-53)