Where is the diagnostic wire routed in a Jeep Cherokee?
The wire is routed to the diagnostic connector through a short section of the ECU harness, the engine, and the instrument panel harness. This type of routing eliminates any potential electrical interference from occurring in the various ECU circuitry.
How does the ignition system work in a Jeep Cherokee?
Based on control system inputs, the ECU triggers the ignition coil via the ignition control module. The ECU is able to advance or retard ignition timing by controlling the ignition coil through the ignition control module.
How does the ECU work in a Jeep Cherokee?
The ECU is able to advance or retard ignition timing by controlling the ignition coil through the ignition control module. The ICM consists of a solid state ignition circuit, an integrated ignition circuit and an integrated ignition coil that can be removed and serviced separately if necessary. The ECU provides an input signal to the ICM.
Where is the knock sensor on a Jeep Cherokee?
Fig. 11: Sync Pulse Signal Generator Operation Courtesy of Chrysler Motors. The knock sensor is located on the lower left side of the engine block just above the oil pan. See Fig. 12. The knock sensor provides an input to the ECU, indicating detonation (knock) during engine operation.
Where is the ignition supply located on a Jeep Cherokee?
IGNITION CONTROL MODULE/ IGNITION COtL ASSEMBLY Electrical feed to the ICM is through terminal “A” of Connector No. 1 on the module. See Fig. 3. NOTE: Electrical supply only occurs with the ignition switch in the START and RUN position.
How does the ICM work on a Jeep Cherokee?
The ECU is able to advance or retard ignition timing by controlling the ignition coil through the ignition control module. The ICM consists of a solid state ignition circuit, an integrated ignition circuit and an integrated ignition coil that can be removed and serviced separately if necessary.