Engine Immobilizer System
THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILIZER SYSTEM: TERMINALS OF ECU
1. CHECK POWER SWITCH
(a) Disconnect the F2 power switch connector.
(b) Measure the resistance according to the value(s) in the table below.
HINT
Measure the values on the wire harness side with the connector disconnected.
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the F2 power switch connector.
(d) Measure the voltage according to the value(s) in the table below.
If the result is not as specified, the power switch may have a malfunction.
(e) Inspect using an oscilloscope.
(1) Waveform 1 (Reference)
(2) Waveform 2 (Reference)
(3) Waveform 3 (Reference)
2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
(a) Disconnect the F50 certification ECU (smart key ECU assembly) connector.
(b) Measure the resistance and voltage according to the value(s) in the table below.
HINT
Measure the values on the wire harness side with the connector disconnected.
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the F50 certification ECU (smart key ECU assembly) connector.
(d) Measure the resistance and voltage according to the value(s) in the table below.
If the result is not as specified, the certification ECU (smart key ECU assembly) may have a malfunction.
(e) Inspect using an oscilloscope.
(1) Waveform 1 (Reference)
(2) Waveform 2 (Reference)
(3) Waveform 3 (Reference)
3. CHECK ID CODE BOX (IMMOBILIZER CODE ECU)
(a) Disconnect the F16 ID code box (immobilizer code ECU) connector.
(b) Measure the resistance and voltage according to the value(s) in the table below.
HINT
Measure the values on the wire harness side with the connector disconnected.
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the F16 ID code box (immobilizer code ECU) connector.
(d) Measure the voltage according to the value(s) in the table below.
If the result is not as specified, the ID code box (immobilizer code ECU) may have a malfunction.
(e) Inspect using an oscilloscope.
(1) Waveform 1 (Reference)
(2) Waveform 2 (Reference)
4. CHECK TRANSMISSION CONTROL ECU ASSEMBLY
(a) Disconnect the A35 and A36 transmission control ECU assembly connectors.
(b) Measure the voltage and resistance according to the value(s) in the table below.
HINT
Measure the values on the wire harness side with the connectors disconnected.
If the result is not as specified, there may be a malfunction in the wire harness.
5. CHECK POWER MANAGEMENT CONTROL ECU
(a) Disconnect the F52 power management control ECU connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
HINT
Measure the values on the wire harness side with the connector disconnected.
If the result is not as specified, there may be a malfunction in the wire harness.
6. CHECK HYBRID VEHICLE CONTROL ECU
NOTICE:
Do not measure voltage or waveform directly at the sealed side of the hybrid vehicle control ECU connectors. Doing so may damage the connectors because these connectors are waterproof.
(a) Waveform 1 (Reference)
(b) Waveform 2 (Reference)
7. CHECK INTEGRATION CONTROL AND PANEL ASSEMBLY
(a) Disconnect the F57*1 or F59*2 integration control and panel assembly connector.
*1: w/ Navigation System
*2: w/o Navigation System
(b) Measure the voltage and resistance according to the value(s) in the table below.
HINT
Measure the values on the wire harness side with the connector disconnected.
w/ Navigation System
w/o Navigation System
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the F57*1 or F59*2 integration control and panel assembly connector.
*1: w/ Navigation System
*2: w/o Navigation System
(d) Measure the voltage according to the value(s) in the table below.
w/ Navigation System
w/o Navigation System
If the result is not as specified, the integration control and panel assembly may have a malfunction.